SLO Preamp AiC fun !

  • Thread starter Thread starter Ben Waylin
  • Start date Start date
CrazyNutz said:
I did try e34L, kt77, and kt66 in this one. But no it's not the one I built specifically for el34.
Click to expand...
So, on that one.. did you just like drop an SLO preamp circuit into a JCM-800 ?

Basically ?
 
PLX said:
So, on that one.. did you just like drop an SLO preamp circuit into a JCM-800 ?

Basically ?
Click to expand...

I used the same PCBs from C3. Just changed some values. 1k on the screens, 5.6k on the grid stoppers, and had to adjust the value of the bias resister (R53 on the slo-clone schem) to get the bias in the correct range for el34. Lastly I used a 800/plexi style output transformer.

Also I just used a blank generic aluminum chassis. BTW I swear there's something about aluminum chassis that make the amp quieter.
Probably magnetic decoupling from the transfomers. Some may argue.
 
Looking at either getting a C3 kit, or maybe just the circuit boards and building it out in an old 50W amp chassis.

SLO preamp / JCM-800 output section.

:unsure:
 
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