Equalizer, as per your question about which resister i used, I ran a 220K and 33k in series which gave me 17.2V on both heaters.Darn close to what the tube manual says at 17.5v. I did use IRF 610s if that could be the cause? I do find it odd that my sinks get that hot just dropping 2...

Thanks big time for the pic and especially the labels! it'll help more than you know! Your 12au7 pics got me through my 9 pin conversion without a hitch.   Granted I'm using 1 1/2" sinks on my 17ew8 and probably should have used 2", but the temp runs at 130-135F whereas I can hold the 19j6...

After building 4 kits and 2 P2Ps I thought there wasn't anything left to try on this amazing little design and then Bang, Equalizer saves the day again with a great idea!!!   Any chance we can get a pic of the flip side of your new board?   I recently finished a 17ew8 version and must...

Thanks, Kim for the quick reply! I may end up wiring my cathode caps and resistors just like you did although mine was a space issue cuz  I used coupling and bypass caps rated for 600v since i had them on hand and wanted to keep costs down. the 8-3 and 3-8 method u describe will work perfectly!  

hello everyone!   Long time reader, first time posting. My question pertains to the 12au7/17ew8 builds. Since pins 3 and 8 are jumpered, can the cathode cap and 2K resistor be connected to pin 8 instead of 3? Same question for the input grids on pins 2 and 7? Thanks in advance!

I don't have a link for you but the Weller WLC100 I use has lasted me for more than 15 years without any problems. There are also 5 different sized tips available for this unit. Whatever you buy, make sure they sell a variety of tips for the unit. I believe Parts Express carries it in the US. It...

Revolink,   I've used similar switches to good effect setting up multiple gain choices for single triode sections on guitar amps before. The switch you're looking at has 1/4" solder lugs and is more than stout enough for what you want. It's not a mini switch, though.... As far as using a...