RETROSTORE.EU
 RECOMMEND US
  • Share the positive experience of our cooperation and recommend us to your friends and acquaintances:
 EVENTS
 SHIPPING PROVIDED BY
Slovenská pošta
 SUPPORTED PAYMENTS
 SHOPPING CART
price:0.00 $
5/5
 SHARE THIS PAGE
heptode - triode ECH21 - (NIB)

ECH21 Philips Miniwatt is a heptode - triode tube with indirectly heated oxide cathode. Both systems are working separately, cathode is common for both of the systems. Heptode may be used as a mixer, hf or lf amplifier. Triodes like oscillator or lf amplifier. ECH21 was a part of many old radio receivers (for example Tesla Riava, Signal, 506A Arie, 619A Dalibor, 620A, 623A Máj, 621A Opera and many others). New in box tubes and in perfect condition. Tested on BM215A tube tester.

(we reserve the right to change the description and specifications without prior notice)