Tube 57 or Röhre 57 ID2681, Vacuum Pentode, 6-Pin-Base U6A, old, USA and RF/IF-Stage shown. Radio tubes are valves.
$8.90 In stock
Triple grid general purpose detector amplifier.
The Type 57 is a pentode designed for use as a biased detector. It features the original American specification for indirectly heated valves - a 2.5 Volt ...
In such service, this tube is capable of delivering a large audio- frequency output voltage with relatively small input voltage. Other applications of the 57 ...
$28.19 In stock
PRODUCT DESCRIPTION: This tube is used in the very earliest production Hammond® Pre-Amplifiers. 1-57. YEAR: Multiple. MODEL: A / B / BA / C / D / G.
$49.08
RCA 57 pentode tube, new old stock, boxed. Tested and guaranteed 30 days. Substitutes: 58; EIA Base: 6F; Filament Voltage ...
Triple grid general purpose detector amplifier.
Find great deals on eBay for 57 radio tube. Shop with confidence.
Specially designed for a variety of applications including radios, guitar amplifiers, and other audio amplifiers. Our vacuum tubes are built to deliver ...