Does someone has a schematic for the Zeppelin Percolator ?

[Kagliostro]

Does someone has a schematic for the Zeppelin Percolator 2W amp ? (it uses a 6AF11 compactron tube)

With the 6AF11 tube a known and well documented amp is the Squirrel Monkey

http://solorb.com/elect/musiccirc/squirrelmonkey1/

I'm looking for the Zeppelin Percolator amp schematic, the Percolator uses the same Compactron 6AF11 tube

https://zeppelindesignlabs.com/produ...or-2w-amp-kit/






I've some info about the Percolator Kit, a documentation is available, but I miss the schematic

Many Thanks

K

[g1]

Zeppelin is a member here. You could send a PM and ask for it.
https://music-electronics-forum.com/...ad.php?t=38853

[vintagekiki]

https://www.instructables.com/id/The-Percolator-2W-Guitar-Harmonica-Tube-Amp/

https://www.youtube.com/watch?v=cQSz1kjnzlo
_{The Percolator DIY Amplifier Instructional Video - Part 1(Electronics)}

https://www.manualslib.com/manual/942593/Zeppelin-Design-Labs-Percolator.html
_{ZEPPELIN DESIGN LABS PERCOLATOR Assembly Instructions Manual}

https://zeppelindesignlabs.com/forums/forum/percolator-tube-amp-forum/

1)
https://zeppelindesignlabs.com/wp-content/uploads/2015/03/PERCOLATOR-Electronics-Only-addendum.pdf
_{Addendum to the Instruction Manual}

[Kagliostro]

Thanks g1 & vintagekiki

There is something that confuses me

On the Squirrel Monkey the autor indicate the B+ to be 180V and the OT load was first 7K and then lowered to 3.5K

B+ on the Zeppelin Percolator is 170V (as indicated on the istruction .pdf) unfortunately there is no indication about OT primary impedance

I've find also an old 6AF11 radio project



and this radio has a B+ of around 175V (250V CT PT = 125V x 1.4 = 175V B+) with 10K of OT primary impedance

So I've

180V B+ @ 3.5K load

170V B+ @ xxK load

175V B+ @ 10K load

this confuses me a lot .....

K

[vintagekiki]

https://www.zeppelindesignlabs.com/wp-content/uploads/docs/Zeppelin_Perc_ASSEMBLY%20INSTRUCTIONS.pdf
_{Percolator 2 Watt Tube Amp}

https://zeppelindesignlabs.com/wp-content/uploads/docs/Zeppelin_Speaker_Manual.pdf
_{Speaker Cabinet 1×8}

https://www.zeppelindesignlabs.com/wp-content/uploads/docs/ZDL%20COMBO%20ASSEMBLY%20MANUAL.pdf
_{Percolator 2W 1×8 Tube Combo}

[Kagliostro]

Ciao vintagekiki

Many thanks for the link, even though I had that documentation

I did a bit more of search and I've find indications on the web that report a 6K load for the 6AF11 on the Percolator

same result if you do a bit of math

Plate dissipation of the 6AF11 pentode is 5W, so Z = Va^2 / Pa

170V x 170V = 28,900

28,900 / 5W = 5,780 Ohm Load (close to 6K as told)

K

[vintagekiki]

https://music-electronics-forum.com/showthread.php?t=50811
Zeppelin ZDL Percolator 2W