[Boatanchors] [Heathkit] Help w/ tubes

[Jim Wiley]

Any of these should work, assuming they fit physically:

6CA7
EL34
1614
6L6GB


The 6L6GB and 1614 have a somewhat lower plate dissipation rating ( 
about 5 watts less, if I remember correctly) than the 6L6GC,  but should 
work just fine.  This power supply has had several iterations.    I have 
the somewhat older PS-4 version.  The original configuration used 
"plain" 6L6G" tubes, when it came out the "GB" and "GC" versions had not 
been announced yet, I believe - or perhaps Heath just got a good deal on 
a large buy of surplus 6L6G tubes.  I think this supply had even earlier 
versions, or at least similar in concept earlier versions. 


If using a metal 6L6 or the 1614, remember to ground the socket pin 
(pin1?) that corresponds to the metal shell on the tube, otherwise 
charges can build up on the shell that will get your attention if you 
accidentally touch the tube when operating!   Of course, if the tubes 
are inside a metal cabinet, this is not so much of an issue - but it is 
good practice anyway.


- Jim, KL7CC




Paul Baldock wrote:
> I think an EL34 will work
>
> - Paul
>
>
>
> At 12:38 PM 11/27/2009, Dave wrote:
>   
>> I have two Heathkit SP-2717A HV power supplies and both need the 
>> 6L6GC tubes.  Anyone now where I can find atlease a pair for a 
>> reasonable price?
>>
>> Or, prefereably, anyone know of a substitute I use in place of the 6L6's?
>>
>> Thanks,
>>
>> Dave
>>
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