[MRCA] 6AK5/5654

[Ray Fantini]

It's a good tube considering its gain and low captaincy, thought at first it was a repackaged 956 but looking at the gain for a 956 acorn and the 6AK5 the "AK" has way more gain. When I started the 4Y had several NOS 5654 in stock but now running short. Funny how you can have sleeves of tubes and never think you're going to use them and then all of a sudden find you don't have as many as you think. Anyway if anyone has a sleeve or two of them would be willing to trade other tubes. Have couple spare sleeves of NOS military 6BA6 tubes and know that the Collins collectors have driven there price way up and will trade one for one for them. Also have lots of sleeves of 6X4 and 6AQ5 but they are as common as dirt. Think each sleeve contains five boxes of tubes. Don't know about everyone else but tend to think we all horde too many tubes, I did get rid of all the television compactrons and weird voltage tubes and just try to keep the tubes for things I am working on or own but they do collect up.

Ray F


Ray,  That's a very interesting situation you found, there.  I've always thought the venerable 6AK5 was pretty much bullet-proof but that may not be the case.  I'm now looking up the curves for the tube and see if the situation you have would really put the tubes off the chart.  Probably, though, with the restoration of the correct voltage(s), things will quiet down.  At least if you have to buy additional tubes, the audio-nuts have hopefully not found that the 6AK5 produces "pear shaped tones" or "uncommon brilliance", and such.......

Jeep - K3HVG

PS  Let me check my stock of tubes and see if I have a lot of them to spare.
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