AR2 tubes (was AR3 tubes)

[Richard Post]

Deane,

My AR-2 also has the 12A6.  I'm willing to bet that the low price of that
surplus tube was why Heath originally chose the 12 volt filament
transformer for these receivers and of course the price and availability of
the three 12 volt "All-American 5" tubes.  The early AR-3 with the small
bandswitch knob may also have used the 12A6.  For those new to these sets,
pix of both the AR-2 and the AR-3 are on my web page.

Rich

>Richard Post wrote:
>>
>> Hi Karl,
>>
>> I remember the tube complement from when I built it as a kid.  5Y3, 12V6,
>> and the rest were the all-American 5 equivalents, 12AV6, 12BE6, 12BA6.
>> Just about every plastic radio of the 1950s has these three in it.   I
>> don't have a tube manual handy so cannot tell if the 12A6 will sub for the
>> 12V6.
>

>> >Thanks.
>> >
>> >Karl
>
>The 12A6 will work reasonably well as a sub for a 12V6 but is not a
>close match.
>
>I have a AR2 which I brought at a flea market many years ago that
>came with a 12A6 tube used as the audio output. I don't have a
>schematic and after reading this I was wondering if the 12V6 is
>the proper tube? Did not suspect anything wrong before as the 12A6
>tube as available for pennies as surplus when the AR2 was offered
>and Heath was still using surplus tubes at that time, up to the
>md 50's.
>
>73, Deane D McIntyre VE6BPO
>dmcintyr at ucalgary.ca


      Boatanchor Pix website - KB8TAD
http://oak.cats.ohiou.edu/~postr/bapix/

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