Mullard EBL1 in box double diode audio output pentode valves tube regen trf qrp
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You are bidding on the following, no reserve item:- Mullard EBL1 in box double diode audio output pentode valves tube regen trf qrp The EBL1 is one of very few double diode audio output pentode valves were designed and was released in 1938. The EBL31 is electrically the same valve but fitted with an IO base cap and was released in 1940. The valve has a common cathode and was intended as a single valve detector and audio stage driving the output transformer (7,000 Ohm primary) and loudspeaker. It would have needed considerable drive at intermediate frequency and the output pentode is of high gain. The main market for this type of valve was simple receivers for local station reception. Check out my other vintage radio parts, books, BITS and bobs etc. I am happy to post this item, WORLDWIDE, delivery to your confirmed, PAYPAL ADDRESS, and NOWHERE else. Postage and packing to destinations outside the UK are getting expensive. Ask for postage costs BEFORE bidding!
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