Search found 13 matches

by tonequest
Sat Nov 21, 2020 6:36 pm
Forum: Dumble Discussion
Topic: advice on 100w bias
Replies: 0
Views: 19868

advice on 100w bias

100w bluesmaster advice - currently 1 fixed 10k L to 15k to ground - each tube 1r 2w. from pin 1 and 8 to ground - i would like to add another 10k L -- one for two outside 6L6 -- one for two inside 6L6 - Would I need to change the value of the 15k resistor {x2 } or just repeat what is already there?...
by tonequest
Wed Mar 25, 2020 9:25 pm
Forum: Marshall Discussion
Topic: lite 2b from ao-35
Replies: 8
Views: 2961

Re: lite 2b from ao-35

Yep - Loud, proud - and a bit of attitude
by tonequest
Mon Mar 23, 2020 11:02 pm
Forum: Marshall Discussion
Topic: lite 2b from ao-35
Replies: 8
Views: 2961

Re: lite 2b from ao-35

Alright ! -- Thanks M Fowler - your a great citizen for lending a hand -- Got the thing much better. Removed the the shielded cable to the pots / turned the pots around so the tabs weren't so close to the OT / moved the shared ground off the 47k resistor to the chassis -- Cranked, this thing rocks -...
by tonequest
Wed Mar 18, 2020 5:37 pm
Forum: Marshall Discussion
Topic: lite 2b from ao-35
Replies: 8
Views: 2961

Re: lite 2b from ao-35

Alright - Reflowed all solder joints and its still a head scratcher - Amp sounds good when I adjust the volume to match the tone knob - kinda like on a radio searching for stations with the noise in-between - it also does the same thing with the tone knob { I find a good volume setting - then adjust...
by tonequest
Sun Mar 08, 2020 7:20 pm
Forum: Marshall Discussion
Topic: lite 2b from ao-35
Replies: 8
Views: 2961

Re: lite 2b from ao-35

Thanks Mr. Fowler- Will check solder joints - I picked up a large roll of solder at a garage sale -tubes old radios etc. When I used the solder it did a dull bead ,so I switched back to tried and true. Might be the culprit -- thanks again - the pics are from an old iPod - will do better next time
by tonequest
Wed Mar 04, 2020 7:31 pm
Forum: Marshall Discussion
Topic: lite 2b from ao-35
Replies: 8
Views: 2961

lite 2b from ao-35

Howdy - Looking for some help on a ao-35 lite b - It all went together in the ao-35 chassis, board,iron with a 2x32uf electro can. It was interesting because I installed the board backwards from layout. It sounds good except when the tone control is used { works good when fully turned to the bass si...
by tonequest
Thu Jan 23, 2020 7:03 pm
Forum: Marshall Discussion
Topic: lite llb ez81 to 5y3
Replies: 5
Views: 2738

Re: lite llb ez81 to 5y3

Thanks for helping guys - Still have more questions - I'll poke around the net for awhile.
by tonequest
Sat Jan 11, 2020 5:44 pm
Forum: Marshall Discussion
Topic: lite llb ez81 to 5y3
Replies: 5
Views: 2738

lite llb ez81 to 5y3

Anybody have a schemo or point me to a marshall lite llb with a 5y3 recto - and advice on using the 5y3 instead of the ez81 -- I'm converting a ao-35 reverb amp and it has the 8 pin rec socket. There are converter plates available for the 81 - Thank you for the help -- amp garage is the best
by tonequest
Mon Feb 25, 2019 8:41 pm
Forum: Dumble Discussion
Topic: G 12H redback ?
Replies: 2
Views: 654

Re: G 12H redback ?

Thanks Atomcap - great to get a reply - Bluesmaster is bottom heavy. Does it sound Celestion ? - Thanks
by tonequest
Mon Feb 18, 2019 9:24 pm
Forum: Dumble Discussion
Topic: G 12H redback ?
Replies: 2
Views: 654

G 12H redback ?

Wondering if anybody uses- and what they think of the 150 watt redback celestion 12" in a single twelve box - I have a oval back single 12" cab with a 100 w. blues master type head. My double 12 box has the 1265s and I have a E.V. 12L - The EVs sound fantastic clean ,but I like the 1265s in OD -- Su...
by tonequest
Thu Jun 22, 2017 7:11 pm
Forum: Technical Discussion
Topic: Preferred Filter Cap Brands?
Replies: 41
Views: 6091

Re: Preferred Filter Cap Brands?

Has any one tried the Miec e-cap offered by just radios ? Lots of different values and they claim NASA uses em--
by tonequest
Thu Nov 20, 2008 5:38 pm
Forum: Technical Discussion
Topic: fender 568 trouble
Replies: 6
Views: 1252

Re: fender 568 trouble

Thanks for the input rfgordon & cygnus. The lead wires are ok and I'm still cap checking.but. common sense tells me it's somewhere else because it's a global problem{both channels}I'll keep lookin.
by tonequest
Sun Nov 16, 2008 10:44 pm
Forum: Technical Discussion
Topic: fender 568 trouble
Replies: 6
Views: 1252

fender 568 trouble

Howdy : Wondering if anyone might help with a problem I have with an early 70s super reverb? When i add a little overdrive to the frontend i get some off key harmonies following certain notes.Just changed the filter caps tried other tubes,rectifier and preamp tubes.The overdrive was fine in my other...