[AMRadio] 6CA7/EL34 replacements


jeremy-ca km1h at jeremy.mv.com
Fri Dec 7 09:24:27 EST 2007


My son uses a Koch guitar amp with Ruby EL-34B-STR tubes and they dont hold 
up well, another one shorted last week.

What are the preferred brands? Searching the web gives a lot of conflicting 
info.

Carl
KM1H


----- Original Message ----- 
From: "Ken Zuercher" <hepcatrevival at yahoo.com>
To: "Discussion of AM Radio in the Amateur Service" 
<amradio at mailman.qth.net>
Sent: Friday, December 07, 2007 12:39 AM
Subject: Re: [AMRadio] 6CA7/EL34 replacements


>I agree about the guitar shop. The Marshall amps use
> EL34 tubes and are pretty tough on them (like me, I'm
> a guitar player) I like the JJ tubes as they were the
> Tesla brand and are made in the Czech Republic. They
> also have a model with beautiful blue glass envelope.
> Ken KC8QO
> --- Mike Sawyer <w3slk at hughes.net> wrote:
>
>> John,
>>     If you are in a hurry, try checking out your
>> local guitar shop. I'll lay
>> odds that they have them available for about the
>> same price you get for mail
>> order.
>> Mod-U-Lator,
>> Mike(y)
>> W3SLK
>> ----- Original Message ----- 
>> From: "John King" <k5pgw at yahoo.com>
>> To: <amradio at mailman.qth.net>
>> Sent: Thursday, December 06, 2007 4:08 PM
>> Subject: [AMRadio] 6CA7/EL34 replacements
>>
>>
>> Please disregard my earlier post requesting
>> information about substituting other numbered tubes
>> for the 6CA7 for testing purposes.
>>
>> I got the transmitter working with the "old"
>> 6CA7/EL34
>> tubes. Now to order some!! Has anyone had much luck
>> with the cheaper import 6CA7 tubes such  those sold
>> by
>> Antique Radio Supply under the brand names of JJ
>> Electronics and Valve Art ???
>>
>> Thanks for reading. 73, John, K5PGW
>>
>>
>>
>>
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>>
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