Definitive 69 Superlead diagram??

Eric Klinger · Post by **Eric Klinger** » Tue Jun 20, 2006 10:54 pm

I should be receiving my '69 circuit by Thursday. Quite an exciting day thursday and friday will be!

Anyway, I have quite a few different diagrams for the 69 circuit... which one is the best one? I have a few from George and one from BillyBatz... not sure which one to use!! Which is most accurate?

wadeberglund · Post by **wadeberglund** » Wed Jun 21, 2006 11:18 am

I built mine using the schematic on the CD George sends with his kits/boards. I think the '69 circuit is a lot less contentious than the earlier ones, so I doubt that there are any significant differences between any that are out there. Most people hack them to their own preference though. What are the differences between George's and BillyBatz's circuits?

-WA

Eric Klinger · Post by **Eric Klinger** » Wed Jun 21, 2006 4:56 pm

Just on first glace, of the diagrams I have from Billy Batz's and a few from George's CD, the rectifiers are in different positions and George has 2 extra .22uf electro caps on the power tranny end of the board.

wadeberglund · Post by **wadeberglund** » Wed Jun 21, 2006 5:17 pm

The rectifier bridge should be electrically equivalent between both George's and Billy's schematics. This is a part of the circuit that is consistent for all 100W Superleads in that time period, although the two may have the layouts slightly different (I haven't seen Billy's). The two 0.22uf caps you mention are called snubber caps and are optional. I like to put them in there since they are cheap and give me some piece of mind. They should be rated at 600V.

They may also differ on the presence or absence of the 1k or 5.6k resistors on the grids of the power tubes. That's something that isn't always consistent between schematics and a lot of people don't pay much attention to.

Let me know if there is something else that looks odd. If you can give me links to the schematics you are trying to reconcile, I could go through and comment on anything significantly different between them

Eric Klinger · Post by **Eric Klinger** » Wed Jun 21, 2006 8:36 pm

sorry, I'm a %$&^%@# idiot! I was looking at Billy's 50watt, not the 100 watt... these seem to on point.

Sorry about that waste of time.

Eric

wadeberglund · Post by **wadeberglund** » Wed Jun 21, 2006 8:47 pm

Heh, no problem. I've done worse.

Flames1950 · Post by **Flames1950** » Wed Jun 21, 2006 9:03 pm

At least you only looked at the 50 watt......some have wired the rectifier the wrong way and fired up.......and then the troubleshooting started.

Billy Batz · Post by **Billy Batz** » Thu Jun 22, 2006 10:18 pm

Flames1950 wrote:At least you only looked at the 50 watt......some have wired the rectifier the wrong way and fired up.......and then the troubleshooting started.

More like the trouble-replacing