That's right George!!!
What make are your 6336's, Cetron?
I have different ones that started collecting from last year. Some Centons, TS, RCA, and a pair of CSF. Even one from Pinnacle, but its most likely a rebrand from a USA maker. I dont believe the UK made any 6336 tubes. I could be wrong though.
You can buy a SS tube rectifier that will replace the tube and still plug in with the tube socket. It is available on Amazon around $15 or so. However you would have instant B+ voltage before the tube had a chance to warm up. This may reduce tube life without a B+ voltage delay. With some amps you may have to rebias the rest of the tubes.
No the C3g is a pentode and the 6SN7 is a dual triode. I can make the amp use 6SN7s would
prefer the C3g though.
Some amps like the SPs use SS rectification and don't sound that bad.
It depends on how they are implemented.
But if you go the way John has suggested replacing in an amp that's designed to use a tube rectifier with a SS one you may get horrible results.
Usually the amp designer chose the transformer with a specific rectifier tube with it's voltage drop in mind.
Using SS with a .7 volt drop can increase the B+ voltage by as much as 50 or 60 volts if a 5R4 tube was used.
This will defiantly change the operating points of the amplifier tubes and maybe go over voltage.
This is how changing rectifiers change the sound .A rectifier tube has no sound of it's own changing it to a different
tube changes the operating points of the amplifier tubes changing the sound.
Normally I like to use a rectifier with the lowest voltage drop GZ37 and 3DG4 and for me TV damper diodes.
Damper diodes have the lowest switching noise of any rectifier. I did use damper diodes in Tyrell's 45 amp.
Now I would like to ween people off the 5U4 and switch them to damper diodes. many of them can handle
1amp - 1000ma of current and 5000 volts.
I still had no luck finding spikes that fit the #6 screws. The buzz goes softer when I lift up the amp from the table, so less contact = less buzz.
I'm thinking of just gluing(?) spikes on it like SO did, hoping that will work, unless I do find some spikes that fit the screw thread