Schematic?

Fuzzbub · Post by **Fuzzbub** » Thu 06/22/06 3:37 am

Guys, I can't find the schematics of the 36 watt version...
Am I missing something here , or...?

malt · Post by **malt** » Thu 06/22/06 3:57 am

here it is : http://www.18watt.com/storage/36watt.png

skål

Post by **zaphod_phil** » Thu 06/22/06 4:21 am

That doesn't really look like a schematic to me - just a layout...

malt · Post by **malt** » Thu 06/22/06 6:12 am

Fuzzbub · Post by **Fuzzbub** » Thu 06/22/06 7:08 am

Yep, I agree!

Ok, you can make out a few things from that as well but a proper schematic would be nice.

tcjeffects · Post by **tcjeffects** » Thu 06/22/06 7:34 am

I think this is what you're looking for

Fuzzbub · Post by **Fuzzbub** » Thu 06/22/06 7:40 am

Yep, that's it. Tnx mate!

johnny5 · Post by **johnny5** » Thu 06/22/06 11:47 am

can that schem be correct? it's got the normal channel going thru a single tone control AND THEN thru the TBM controls. this doesn't make sense. is that how it's supposed to be?

keith · Post by **keith** » Thu 06/22/06 2:07 pm

Does the 36 watt -not- use the same 1K-1.5K 3 watt screen resistors as the 18 watt? The schem shows a shared 100 ohm on each pair of EL84s.

Thankyou,
Keith

pugs · Post by **pugs** » Thu 06/22/06 2:48 pm

Thats The Revision 2 ... You Want The Revision 5 Schematic ...

keith · Post by **keith** » Thu 06/22/06 2:55 pm

So, where is the -rev5- schematic? Can you please post a link.
None of the docs under the 36watt section reference it.
Thankyou,
Keith

pugs · Post by **pugs** » Thu 06/22/06 3:14 pm

mhuss.com

Post by **zaphod_phil** » Thu 06/22/06 3:43 pm

johnny5 wrote:can that schem be correct? it's got the normal channel going thru a single tone control AND THEN thru the TBM controls. this doesn't make sense. is that how it's supposed to be?

That's one of Richie/Plexi's deviant versions.

So really both channels end up being tMB channels - just that the "normal" channel has the extra tone control on it. The two channels can also be jumped together, Plexi style.

keith wrote:Does the 36 watt -not- use the same 1K-1.5K 3 watt screen resistors as the 18 watt? The schem shows a shared 100 ohm on each pair of EL84s.

That *is* the same as a regular 18W. But it's not too good for the EL84s. So I change it to a single shared 1k resistor per pair, followed by individual 100 ohms soldered on at each tube's socket.

keith · Post by **keith** » Thu 06/22/06 4:04 pm

pugs wrote:

mhuss.com

Nope, no 36watt rev5 schem there.......

Keith

pugs · Post by **pugs** » Thu 06/22/06 4:09 pm

mhuss.com
click ... Musical Electronics ...
click ... Misc. 18 Watt Schematics ...
36W Rev5 ... Both GIF & PDF ...

It Makes A Very Nice Amp ...

keith · Post by **keith** » Thu 06/22/06 4:19 pm

Ahh, under misc 18 watt.

http://www.mhuss.com/18watt/schematics/36wTMB5.gif
http://www.mhuss.com/18watt/schematics/36wTMB5.pdf

Thankyou
Keith

Fuzzbub · Post by **Fuzzbub** » Thu 06/22/06 6:12 pm

Yes tnx. Much appreciated!

Great website you have btw!

Regards /JEH

hotgoalie11565 · Post by **hotgoalie11565** » Wed 07/12/06 10:06 pm

How would you go about adding reverb and where would it fit into the schematic?

floridajack · Post by **floridajack** » Wed 07/12/06 10:28 pm

does anyone have a bom for the r5 layout?

floridajack

Post by **markh** » Thu 07/13/06 7:20 am

I added the R5 schematic to the Downloads section to make it easier to find.

--mark h

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