Alan Douglas wrote a book called Tube Testers and Classic Electronic Test Gear. It's a good book but there is no mention of a particular supplier of test gear, Radio City Products. I have Middleton's Test Equipment Circuit Manual, which has schematics for a variety of devices and manufacturers, and it doesn't have any Radio City products either.
Radio City (they referred to themselves as RCP) made a slew of test gear between the 1930s and the 1950s, and enough of it survives that I thought it deserved documentation. This was originally going to be an article for the SCARS newsletter, but because nearly all of my information comes from advertisements and blurbs in magazines, there's not enough to make a decent article; but it makes a perfectly good directory here.
A Quick Overview of RCP
RCP made a slew of equipment, yet there's very little information that I've been able to gleen from anything other than their own advertising or short descriptions that usually appeared in the "New Products" sections of magazines; the latter were typically taken from press releases written by the manufacturers themselves. RCP advertised heavily in Service magazine, and is mentioned sometimes in Radio Service Dealer. Those are my main sources below. Richard E. Green has a webpage on Radio City products. He cites mentions and ads for RCP in issues of Radio Craft, Radio Engineering, Radio News, Radio Today, and others. Issues of nearly all those magazines can be found at AmericanRadioHistory.com.
The earliest mention I can find is from Service's November 1932 issue (p.332), for RCP's "multidapter" product. This was a tube-socket-and-wiring arrangment meant to allow earlier tube testers to work on more recent tubes. Later ads were usually for piece-parts: meter movements, shunts, switches and the like. The first real piece of test equipment I've found advertised is the Model 304 Tube Tester (Service, July 1934, p.277).
Throughout the 30s and the 40s, they churned out a lot of products, from simple VOMs to tube testers to test oscillators and oscilloscopes. But it appears that every time Radio City made a revision to their product, they'd give it another model number and advertise it as new; I can't say how much difference there is between similar models (e.g. the Models 403 and 409 Multitester) because I don't own them and can't do a tear-down; but from the advertising I assume the differences are often small. In some cases the advertising artwork for different products remains the same.
The last mention I've found for RCP is an advertisement for the Model 325 Tube and Transistor Tester (Service, March 1956 p.60). Press releases for the previous couple years mentioned that RCP had relocated from New York City to a new manufacturing plant in Easton, Pennsylvania. By now RCP was part of the Reiner Electronics Company. From there the trail goes cold.
Equipment
Equipment is listed in order by model number. This is not a complete list; I come across models I've never seen before on places like eBay.
Letters following model names vary in their meanings, but usually P meant "portable"—the unit had a carrying case. C models are often "countertop" types with the front panel set at an angle so it can be read more easily. Some units were offered in several different styles at the same time. K designated kit versions.
Model |
Name | Year | Description | Image | Reference |
|---|---|---|---|---|---|
120 |
Tube Tester modernization accessory | 1948 | Unit has flex cable and plug for Loktal socket of old tube tester. New mini and sub-mini tubes may be tested. For RCP Testers 308, 309, 310, 312, 313, 800, 801, 801A, 802, 803, 804, 804A | Yes | Described: Service, Feb 1948 p.41 |
123 |
Flybacker | 1954 | Tests flyback transformers and yokes. | Yes | Described: Service, January 1954 p.69 Ad: Service, Mar 1954 p.19 |
125 |
Tube Tester modernization accessory | 1948 | Unit has flex cable and plug for Loktal socket of old tube tester. New mini and sub-mini tubes may be tested. For RCP Testers 803, 804 and 804A | Yes | Described: Service, Feb 1948 p.41 |
304 |
Tube Tester | 1934 | Direct reading Good-Bad scale; separate line-voltage meter; automatic neon-light short and leak test up to 1MΩ between two elements. Counter and portable models. | No | Ad: Service, July 1934 p.277 |
306 |
Tube Tester | 1934 | Designed toward future advances in tube types. | No | Described: Service, June 1937 p.394 |
307 |
Dynoptimum Tube Tester | 1937 | Can test Loktals, single-ended tubes, ballasts, pilot lights. Hot short and leak tests between all elements. 307C is counter type (tilted panel); 307P is portable model. | Yes | Ad: Service, Oct 1937 p.28; Service, Feb 1939 p.83 (big ad) |
308 |
Dynoptimum Tube Tester | 1939 | Will test 35-, 40-, 45-, 50-, 70-, 75-, 80- and 115-V tubes; provision for noise test. C is countertop model; P is portable model. | Yes | Described: Service, July 1939 p.358; Service Jan 1940 p.36 Ad: Service, June 1939 p.315; Service, Jan 1940 p.38 (big ad) |
308 Series D |
Series D Tube Tester | 1940 | 9-inch meter. Tests tubes, including miniatures, pilot lamps, headlights, miniature bulbs and ballast tubes. Available as countertop and portable models. | Yes | Described: Service, Apr 1940 p.39; Service, May 1940 p.24 (includes schematic) |
309 |
Dynoptimum Tube Tester | 1941 | Tests new minis and bantam, junior, ballast tubes. Hot short and leak tests between all elements; hot cathode leak test; noise test; spare socket for new arrangements. 309C is countertop type; 309P combination portable-counter type. | Yes | Ad: Service, Sept 1941 p.37 (big ad) |
310 |
Tube Tester | 1940 | Tests every type of tube; separate test for noise, hum, intermittents, bad connections; hot inter-element short and leak test; hot cathode leak test. C model Series 3 for counter use; P model combination portable-counter use with slip-hinge cover, handle, compartment for tools. | Yes | Ad: Service, Aug 1940 p.29 |
310P-3 |
tube Tester | 1941 | Tests all types; filament voltages up to full line voltage; tests all ballast tubes, pilot lights, Xmas tree lights. | Yes | Ad: Service, Jan 1941 p.37 (big ad) |
314 |
Tube Tester | 1944 | Tests octal, loktal, bantam, midget, acorn tubes. Oak carrying case. | Yes | Described: Service, July 1944 p.34 Ad: Service, Dec 1944 p.25 |
321 |
Master Tube Tester & Multitester | 1939 | Tubes: tests all tubes under RMA load conditions; hot short/leak tests; hum and noise tests. Tester: 2,000Ω/V; 0-30MΩ. Case for portable or bench use. | Yes | Ad: Service, Nov 1939 p.543 |
322 |
Tube Tester | 1946 | Tests all current tubes; tests noisy, swinging or high-resistance connections; 4-1/2" square meter; neon lamp for short and leak tests. 322 model in steel case countertop style; P model in oak case with handle. | Yes | Ad: Service, July 1946 p.39 |
322A |
Tube Tester | 1950 | A version is a revision to base 322 model. AK is the model offered as a kit. | Yes | Ad: Service, July 1950 p.40 |
323 |
Dynoptimum Free Point Tube Tester | 1950 | Includes extra sockets and switches for future tubes with extra elements. C version is countertop model; P has oak carrying case. | Yes | Described: Service, December 1950 p.53 Ad: Service, Aug 1950 p.69 |
324 |
Tube Tester | 1953 | Tests standard, Octal, Loktal, mini and submini, transmitting, hearing aid, ballast, pilot light, gas rectifier and magic eye tubes. Checks magnetic deflection on CRTs. Tests batteries under load. C = counter model with open metal case. P = combo portable-counter model, wood carrying case with slip-hinge cover. | Yes | Ad: Service, May 1953 p.54 |
325 |
Tube and Transistor Tester | 1956 | Tests NPN, PNP transistors, radio and tv tubes, including magnetically deflected CRTs and series-string heater tubes. Dynamic Gm test. | No | Described: Service, Mar 1956 p.60 |
327 |
Portable Tube Tester | 1954 | Tests all tubes; picture tubes with CR adapter. | Yes | Ad: Service, Sept 1954 p.12 |
345 |
Super VTVM | 1950 | 4-1/2" meter; 25MΩ input impedance; 2-1,000 MΩ; 0-1,000V AC-DC; dB meter; discriminator alignment scale with zero center. K= kit version. HV345 is high-voltage version (up to 25KV); HVHF is high-voltage high-frequenc version (freq to 400MHz). | Yes | Described: Service, April 1950 p.49; Service, March 1953 p.71 Ad: Service, Apr 1950 p.43 |
Model |
Name | Year | Description | Image | Reference |
403 |
Multitester | 1934 | 2,000Ω/V portable VOM; 1/4 - 2MΩ in 3 ranges; 0-750V DC; 0-50mA. | Yes | Described: Service, Sept 1934 p.353 Ad: Service, May 1934 p.203 |
403A |
Multitester | 1934 | 2,000Ω/V portable VOM; 1/4 - 2MΩ in 3 ranges; 0-750V DC; 0-50mA. | Yes | Described: Service, Dec 1934 p.486 |
404 |
Set Tester | 1935 | 2,000Ω/V portable VOM; 3-1/2" meter; R:1/4 through 2MΩ in 3 ranges; 0-750V in 4 ranges; 0-500mA in 4 ranges. | Yes | Described: Service, Jan 1935 p.13 (incl. schematic) |
409 |
Multitester | 1937 | 2,000Ω/VDC (1,800Ω/VAC) portable VOM; 5" meter; 0-7.5MΩ; 0-1,000V AC-DC; 0-5A DC. | Yes | Ad: Service, Apr 1937 p.261 |
409A |
Multitester | 1938 | 2,000Ω/VDC (1,800Ω/VAC) portable VOM; 5" meter; 0-10MΩ; 0-1,000V AC-DC; 0-5A DC. | Yes | Described: Service, Nov 1938 p.56 |
410 |
Master Multitester | 1936 | 0-40MΩ in 6 ranges; 0.0001 - 300 µfd; 0-1,000 VAC-DC; 0-2.5A | Yes | Described: Service, Oct 1936 p.512 |
411 |
Supertester | 1939 | 3-" meter; AC-DC 0-25A; 0-5,000V AC-DC; 0-4MΩ; db -10 to +69. 411 natural wood case; 411B adds ability to test ballast tubes with octal bases; 411P portable model with hinged cover. | Yes | Described: Service, Feb 1939 p.88 Ad: Service, Feb 1939 p.83 (big ad) |
412 |
Pocket Multitester | 1939 | 400mA meter covers 13 ranges DC volts, mA, µA. | Yes | Described: Service, Oct 1939 p.497 |
413 |
Pocket Multitester | 1939 | AC DC VOM. 2,500Ω/V DC. | Yes | Described: Service, Dec 1939 p.576 Ad: Service, Jan 1940 p.38 |
414 |
Master Multitester | 1940 | Base model had 4-1/2" meter; VP7 had 7" meter; VP9 had 9" meter. 2,000Ω/V. 0-5,000V AC or DC in 5 ranges; 0-1,000mA in four ranges, 0-25A in 3 ranges; 0-300µF in 5 ranges; 0-15MΩ; 0-10,000H in 5 ranges | Yes | Described: Service, Mar 1940 p.36 (incl. schematic); Service, Jul 1940 p.31 (variants) Ad: Service, Mar 1940 p.31 |
415 |
Juke Box Tester | 1941 | For testing pinball machines, juke boxes, commercial voice recorders, etc. | Yes | Described: Service, Nov 1941 p.32 |
416 |
Pocket Multitester | 1943 | n/a | No | Described: Service, Apr 1943 p.26 (very brief) |
417 |
Appliance Tester | 1941 | AC and DC measurements; 0-250V; 0-25A and 0-3,000W. | Yes | Described: Service, Mar 1941 p. 29 (incl. schematic) Ad: Service, Sept 1941 p.37 (big ad) |
418 |
Pocket Multitester | 1943 | n/a | No | Described: Service, Apr 1943 p.26 (very brief) |
419 |
Multitester | 1943 | 2,000Ω/V; 0-5,000V AC-DC; 0-1,000mA DC; 0-25A DC; 0-300µF; 0-15MΩ; 0.25-10,000H inductance | Yes | Described: Service, Feb 1943 p.27 Schematic: Radio Service Dealer, 1944-11 |
420 |
Pocket Multitester | 1944 | AC DC 0-5,000V at 1,000Ω/V; mA, Ω, dB and output meter. | Yes | Ad: Service, Dec 1944 p.25 |
421 |
Power Level Indicator | 1936 | Power-level indicator or dB meter, used chiefly for measuring power levels of AF current. Range -12 to 43dB; 0-160V; 500µA meter movement. | Yes | Described: Service, Jan 1936 p.32 |
422 |
Supertester | 1944 | Range 0-25A, 0-5,000V AC-DC; 5,000Ω/V; 0-10MΩ; 3" meter face. | Yes | Described: Service, June 1944 p.31 Ad: Service, Oct 1944 p.25 |
423 |
Multitester | 1942 | 3" meter; 2,500Ω/V DC, 1,000Ω/V AC; 0-10MΩ; hardwood walnut case; portable model in walnut carrying case. | Yes | Described: Service, Aug 1942 p.25 Ad: Service, July 1942 p.28 |
424 |
Multitester | 1946 | 3" meter with 400uA movement; 2,500Ω/V; 0-1,000V AC-DC; 0-1,000mA; 0-10MΩ; -10-55 dB; 424 is base model; P is portable with hinged cover and strap. | Yes | Described: Service, Feb 1946 p.46 |
424A |
Multitester | 1946 | Same as 424; portable in hardwood case with handle, removable cover, test leads and batteries. | Yes | Ad: Service, June 1946 p.30 |
432 |
Trouble shooter | 1937 | 1,000Ω/V; 0-1,000VDC; 0-10mA; 0-500KΩ | Yes | Ad: Service, Oct 1938 p.28 |
442 |
Compact Multitester | 1943 | 5,000Ω/V; 0-150mA DC; 0-1,500V DC; 0-600V AC; 0-600V output. | Yes | Described: Service, July 1943 p.30 |
445 |
Multitester | 1939 | 0-2,500V DC; 0-1,000V AC; 0-1,000mA DC; 0-10A DC; 0-1MΩ; 1,000Ω/V | Yes | Ad: Service, Nov 1939 p.543 |
446A |
AC/DC Multitester | 1943 | n/a | Yes | Described: Service, Apr 1943 p.26 (very brief) |
446 |
Multitester | 1940 | 0-2,500V DC; 0-1,000V AC; 0-1,000mA; 0-10A; 0-1MΩ; 8-55 dB. P model is portable with hardwood case, hinged cover, compartment for tools. | Yes | Ad: Service, Aug 1940 p.29 |
447 |
Multitester | 1945 | Ranges 0-2,500V DC; 0-1,000V AC; 0-1,000V output; 0-1,000mA; 0-10A; 0-1MΩ; -8-55 dB; base model open face; P model with handle, removable cover. | Yes | Ad: Service, Oct 1945 p.54 |
447B |
AC/DC Multitester | 1950 | B version is revision base 447 model; also offered as 447BK as a kit | Yes | Ad: Service, July 1950 p.40 |
448 |
Pocket Multitester | 1946 | 3" meter with 200µA movement; 5,000Ω/V; 0-1,000V AC-DC; 0-1,000V output; 0-1,000mA DC; 0-1MΩ; -6-52dB. | Yes | Described: Service, Jan 1946 p.44 Ad: Service, Jan 1948 p.xx |
449 |
Pocket Multitester | 1946 | 3" meter with 200µA movement; 0-1,000V AC-DC; 0-1,000V output; 0-1,000mA DC; 0-1MΩ; -15-55dB. | Yes | Ad: Service, Aug 1946 p.16; Service, Feb 1947 p.7 (big ad) |
449A |
Multitester | 1947 | Similar to 449. Has germanium crystal rectifier for AC measurements 30Hz to 50kHz. | Yes | Described: Service, Apr 1947 p.24 Ad: Service, Feb 1950 p.57 |
456 |
Trouble Tracer | 1939 | 1,000Ω/V movement; 0-1,000V AC-DC; 0-10mA DC; 0-500kΩ; -12-54 dB; hardwood case. 456P is portable model. | Yes | Ad: Service, Sept 1939 p.450 |
461A |
Multitester | 1943 | 4-1/2" meter with 50µA movement; 20,000Ω/V DC, 1,000Ω/V AC ; 0-5,000V AC-DC; 0-500mA; 0-10MΩ; -10-55 dB; 461A is open face bench type; 461AP in natural oak case with hinged cover and leather handle, with test leads and batteries. | Yes | Described: Service, Mar 1943 p.35 Ad: Service, Mar 1946 p.41 |
462 |
Multitester | 1950 | 20,000Ω/V DC, 5,000Ω/V AC; 6-1/2" meter; germanium crystal rectifier; 0-5,000V AC-DC; 0-500mA DC; 0-20MΩ; -10-55dB. 462 in oak case; 462P portable model in oak case with hinged cover, tool compartment and test leads. | Yes | Ad: Service, Feb 1950 p.57 |
471 |
Output Meter | 1943 | 0-150V output | Yes | Described: Service, July 1943 p.30 |
480 |
Multitester | 1954 | 3" meter with 800µA movement; 1,000Ω/V DC; 0-1,000V AC-DC; 0-1,000V output; 0-1,000mA; 0-100KΩ internal, 10MΩ external; -8-55 dB. | Yes | Ad: Service, July 1954 p.58 |
481 |
Test Meter | 1943 | 50µA movement; 0-1,000V DC; 0-100mA AC; 0-10MΩ. | Yes | Described: Service, July 1943 p.30 |
488 |
Multitester | 1944 | 4-1/2" meter with 50µA movement; dual sensitivity 20,000Ω/V and 1,000Ω/V. Comes with battery, test probes and carrying case. | Yes | Ad: Service, Nov 1944 p.33 |
488A |
Multitester | 1946 | Revision of model 488. | Yes | Ad: Service, May 1946 p.39; Service, May 1950 p.73 |
Model |
Name | Year | Description | Image | Reference |
501 |
Analyzer | 1934 | n/a | Yes | Ad: Service, Nov 1934 p.449 |
504 |
Analyst | 1939 | For analyzing socket terminals in radio and PA sets. Permits E and I measurements simultaneously. 504C 3" deep case. | Yes | Ad: Service, Feb 1939 p.83 (big ad) |
505 |
Analyzer | 1939 | For analyzing socket terminals in radio and PA sets. Permits E and I measurements simultaneously. | Yes | Ad: Service, June 1939 |
533M |
Midgetscope | 1952 | 3" CrT miniature scope. | Yes | Described: Service, Dec 1952 p.61 Ad: Service, July 1952 p.51 |
534 |
Midgetscope | 1955 | Similar to 533M. | Yes | Described: Service, April 1955 p.43 |
553 |
3" Oscilloscope | 1943 | 3" CrT. | Yes | Described: Service, May 1943 p.31 |
555 |
Oscilloscope | 1943 | 5" CrT. Black crackle steel case with carrying handle. | No | Described: Service, Jan 1943 p.21 |
610B |
1944 | 0-200MΩ at 500VDC. | Yes | Ad: Service, May 1944 | |
654 |
Do-All Multimeter | 1950 | AC-DC VOM; 25MΩ DC input resistance. | No | Described: Service, June 1950 p.52 |
655 |
Multimeter | 1953 | AC peak-to-peak from .2 to 4,200V, AC RMS from .1 to 1,500V, DC from .02 to 1,500V, resistance from .2 to 1,000MΩ in 7 ranges. 11MΩ DC input resistance. | Yes | Described: Service, Oct 1953 p.100 Ad: Service, Jan 1954 p.5; Service, Jan 1955 p.5 |
657 |
Do-All Multimeter | 1955 | Combination VOM, RMS AC, capacity and inductance meter. 8-1/2" meter, carrying handle. | Yes | Ad: Service, Jan 1955 p.5 |
660 |
Multitester | 1941 | VTVM. | Yes | Ad: Service, Aug 1939 p.408 |
661 |
Electronic Multitester | 1941 | VTVM. 0-6000V; 0-1,000MΩ; capacity 0.00003 to 1,000µF. | Yes | Described: Service, Mar 1941 p.28; Service, June 1941 p.34 Ad: Service, May 1941 p.28; Service, June 1941 p.9 (big ad) |
662 |
Electronic Multitester | 1942 | VTVM. 4-1/2" meter; input resistance 160MΩ high, 16MΩ low; 0-6,000V AC-DC; 0-1,000MΩ; 0.00005 to 2,000µF. | Yes | Described: Service, Jan 1942 p.26; Service, Sept 1942 p.25 Ad: Service, Feb 1942 p.17 (big ad); Service, Sept 1942 p.26 |
665 |
Insulation Tester | 1944 | Tests 0-10,000MΩ at 500V. VTVM 0-6,000V, 0-1,000MΩ. Metal case. | Yes | Ad: Service, Oct 1944 p.25 |
666 |
VTVM | 1942 | 4-1/2" 200µA movement; 0-15V; 16MΩ input impedance; strap handle. | Yes | Described: Service, July 1942 p.26 Ad: Service, July 1942 p.26 |
668 |
VTVM/Capacitymeter | 1947 | VTVM. Input resistance 160MΩ high, 16MΩ low; 0-6,000V AC-DC; 0-1,000MΩ; .00005 to 2,000µF. | Yes | Ad: Service, Jan 1947 p.27 (big ad); Service, Dec 1945 p.50 |
670 |
Electronic Limit Bridge | 1942 | Dial calibrated 0-center to 10% deviation either side; comparison against predetermined internal standard of any arbitrary value selected, or by external standard connected via terminals. 4-1/2" meter face, 25-0-25µA movement; oak carrying case. | Yes | Described: Service, Aug 1942 p.25 |
Model |
Name | Year | Description | Image | Reference |
701 |
Pocket Signal Generator | 1937 | Attenuation from 1µV to 0.5V through a 5-step constant impedance ladder. Freq range between 125kHz to 60MHz. | Yes | Described: Service, June 1937 p.394 Ad: Service, Feb 1939 p.83 (big ad); Service, Sept 1947 p.56 |
702 |
Signal Generator | 1939 | Covers 95kHz to 100MHz; output modulated or unmodulated. | Yes | Ad: Service, Sept 1939 p.450; Service, Sept 1941 p.37 (big ad) |
703 |
Signal Generator | 1943 | n/a | No | Described: Service, Apr 1943 p.26 (very brief) |
704 |
Signal Generator | 1945 | Covers 95kHz-100MHz. | Yes | Described: Service, Jan 1945 p.38 |
705 |
Test Oscillator | 1946 | Covers 95kHz-100MHz. | Yes | Ad: Service, Feb 1946 p.36 |
705A |
AM-FM Signal Generator | 1948 | Covers 95kHz-100MHz, AM and FM. | Yes | Described: Service, June 1951 p.67 Ads: Service, June 1948 p.49; Service, Dec 1949 p.34 |
710 |
AM Pocket Signal Generator | 1949 | Fixed frequencies 1500, 550, 456, 465kHz. | Yes | Ad: Service, Feb 1949 p.46 |
720 |
FM Pocket Signal Generator | 1948 | Four freqs: 10.7MHz IF, 88MHz low, 98MHz mid, 108MHz. Trimmers available for calibration. | Yes | Described: Service, Apr 1948 p.46 Ad: Service, Feb 1948 p.36 |
720A |
FM Pocket Signal Generator | 1949 | Fixed frequencies 9.1, 10.7, 88, 108MHz. | Yes | Ad: Service, Feb 1949 p.46 |
730 |
Universal Signaligner | 1953 | AM-FM RF signal generator. | Yes | Ad: Service, Oct 1953 p.112 |
740 |
TV Signal Generator | 1952 | Combination RF signal, AF, marker and pattern Generator. | Yes | Described: Service, May 1952 p.82 Ad: Service, May 1952 p.65; Service, Sept 1952 p.76 (better ad); Service, Dec 1952 p.4 (big ad) |
740A |
TV Signal Generator | 1953 | Combination signal generator, marker generator and pattern generator. | Yes | Described: Service, May 1953 p.127 Ad: Service, June 1953 p.54 |
750 |
TV Signal Generator | 1953 | Signal, Marker, Pattern Generator for UHF and VHF. 9MHz to 900MHz. All VHF freqs on fundamentals. Horizontal, vertical bars and crosshatch individually produced on all channels. | Yes | Ad: Service, Oct 1953 p.112 |
777A |
Dynatracer | 1950 | Hear signal at any point in circuit. Attenuation 10,000:1; Sensitivity 10,000µV full scale; freq range approx 160MHz. Jack for testing microphones and pickups. K model is kit version. | Yes | Described: Service, Nov 1949 p.39 Ad: Service, Apr 1950 p.43 |
780 |
Sweep Generator | 1954 | Sweep in one direction only at a uniform output level; may be used with any marker generator and oscilloscope. | Yes | Described: Service, Oct 1954 p.61 Ad: Service, Nov 1954 p.4; Service, Mar 1955 p.12 (big ad) |
Model |
Name | Year | Description | Image | Reference |
801 |
Tube and Set Tester | 1939 | 4-1/2" meter; Tube tester, VOM. 0-1,000V AC DC; dB and output meter. | Yes | Described: Service, Nov 1939 p.522 Ad: Service, Aug 1939 p.408 |
802 N |
Tube and Set Tester | 1940 | Test tubes; 0-1,000V AC and DC in 4 ranges; 0-10MΩ in 4 ranges; 0-1A in five ranges; 0-10A; dB and output meter. | Yes | Ad: Service, Oct 1940 p.18 (big ad); Service, Oct 1945 p.38; Service, Dec 1946 p.5 |
803 |
Tube and Set Tester | 1940 | Tube tester: Tests latest tubes, minis, bantam, juniors. Hot inter-element short and leak tests; individual section for multi-purpose tubes; noise test. VOM: 0-1,000V AC DC at 1,000Ω/V; 0-1,000 mA , 0-10A DC; 3-55 dB. | Yes | Described: Service, Sept 1940 p. 10; Service, Oct 1940 p. 13 (incl. schematics) Ad: Service, Aug 1940 p.29; Service, Oct 1941 p.17 (big ad) |
804 |
Portable DualTester | 1943 | Tube, battery and set tester; direct tests all acorn tubes; leak tests under rated voltages for electrolytics; regular resistance test for electrostatic caps at high voltage. | Yes | Described: Service, Sept 1943 p.29 Ad: Service, Nov 1944 p.33 |
805B |
Portable Tube and Set Tester | 1947 | 0-5,000V AC-DC; 0-1,000V output; 0-10A; 0-25MΩ; -8-55dB. | Yes | Described: Service, May 1947 p.38 Ad: Service, Oct 1946 p.45 |
807 |
Tube and Set Tester | 1950 | Model 323 with VOM. AC DC - 0-2,500V; 0-10A; 0-10MΩ; -8-55dB. | Yes | Ad: Service, Aug 1950 p.69 |
808 |
Tube Tester and VTVM | 1952 | Combination tube, CrT tester, CrT reactivator, VTVM; same as Model 323 tube tester; VTVM ranges 0-1,000V AC-DC; 0.2-1000MΩ; -20-62 dB; tests condensers for leaks and shorts. In oak carrying case with leads, isolation probe, batteries. | Yes | Described: Service, June 1952 p.49 Ad: Service, June 1952 p.67; Service, Sept 1952 p.76 (better ad) |
8020 |
Servishop | 1953 | 808A tube tester/VTVM, 750 TV generator and 533M oscilloscope in clam-shell carrying-case. | Yes | Ad: Service, Oct 1953 p.112 |
8023 |
Servishop | 1953 | Same as 8020 but combines Models 730 signaligner into the 808A. | Yes | Ad: Service, Oct 1953 p.112 |
8010 |
Servishop | 1953 | Combines Models 730 aligner and 808 tube tester/VTVM; 740A TV generator and 533M oscilloscope included in clam-shell carrying-case. | Yes | Ad: Service, April 1953 p.23 |
8073 |
Servishop | 1948 | Tube tester, multitester, signal generator (AM-FM), AF generator, capacitor tester. In oak carrying casae with tubes, test leads. | Yes | Described: Service, Mar 1948 p.49 Ad: Service, Apr 1948 p.60 |
8573 |
De Luxe Combination | 1948 | Tube tester, set tester and signal generator; 0-5,000V AC-DC; 0-5,000V output; 0-1,000mA; 0-10A; 0-25MΩ; -8-55dB. | Yes | Ad: Service, Aug 1948 p.42 |
8773 |
Servishop | 1950 | Combined tube tester, AM/FM signal generator, AF oscillator; condenser tester, VOM. | Yes | Ad: Service, Aug 1950 p.69; Service, Nov 1950 p.66 (larger ad) |
8873 |
Servishop | 1950 | Combined tube tester, VTVM and signal generator, Crt Tester and reactivator. | Yes | Described: Service, Feb 1953 p.86 |
TV-50 |
Television marker | 1949 | 5-260MHz in 4 bands; internal crystal oscillator circuit, or any crystal 100kHz up can be used in socket. | Yes | Described: Service, Sept 1949 p.55 Ad: Service, Sept 1949 p.52 |
TV-75 |
Sweep Generator | 1949 | 5-270MHz in 4 bands; sweep width 100kHz-10MHz; marker in freqs from 5 to 250MHz; provision for crystal oscillator marker—2 internal, 1 external. | Yes | Ad: Service, Oct 1949 p.52 |
TV-80 |
Sweep Generator and Marker | 1950 | Continuously variable 5-240MHz; sweep width 400kHz-10MHz; High-Q absorption marker 17-48kHz. | Yes | Described: Service, Aug 1950 p.67 Ad: Service, May 1950 p.73 |
TV-90 |
TeeVee Scope | 1949 | Oscilloscope and sweep generator. | Yes | Described: Service, Jan 1949 p.46 Ad: Service, Jan 1949 p.43 |
