[Hallicrafters] PL-172

[Roger K8RI]

A couple of points about the PL-172/8295.   There are actually two different 
tubes.  The original PL-172/8295 which is metal with glass seals and the 
8295A which is metal with ceramic seals.

The originals (PL-172) is noted for getting gassy, particularly with out 
being used.  They are still available from a number of sources although they 
may not be in stock all the time.  RF Parts did carry them with a gurantee, 
but they were as much or  more than the amps usually sell for.  The 8295As 
run about double the price of a PL-172/8295.

As for general price and availability there appear to be quite a few PL-172s 
around.  They may or may not be gassy.  Prices vary widely, but I've not 
seen any recently for less than several hundred dollars and they run as 
high, or higher than $1200 at some of the catalog supply places.  I looked 
at a guranteed 8295A for $2400.

If you find them for less than $300 or $400, go for it and hope for the 
best.  You might want to plug it in and just let the filament cook for a few 
days.  *Sometimes* they show up at swaps for less, but you never know what 
you are getting.


BTW, I saw the same AMP, but $100 shipping stateside looks a bit steep, but 
if it's well packed ...

Roger Halstead (K8RI and ARRL 40 year Life Member)
N833R - World's oldest Debonair CD-2
www.rogerhalstead.com

> David C. Hallam wrote:
>> Currently there is a HT-33A amplifier up for bid on eBay.  The PL-172 
>> final
>> is not included.  I know PL-172's are not readily available and probably
>> expensive.  Before I consider bidding, does anyone know price and
>> availability of a PL-172?
>>
>> David C. Hallam
>> KC2JD
>>
>
> It's also known as an 8295. They show up on ebay from time to time.
>
> 73, Roger
>
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