Thanks a lot!
I ve seen they have deteled the 470k resistor between the gain volume pot and pin 7 on V1 and change el84's pin 9 10r resistor for 1k , and that 2,7k on v1 cathode. I won t ask explainations and give try instead lol
Marshall 18w clone tmb problem
Moderators: pompeiisneaks, Colossal
Re: Marshall 18w clone tmb problem
I tend to try 2,7k resistor at v1 cathode and el84 grids 1k ?
But the deleted 470k before the gain/volume pot let me interrogative
But the deleted 470k before the gain/volume pot let me interrogative
Re: Marshall 18w clone tmb problem
That s ok! Problem solved!
It s a noob mistake! The input shielded wasn t well realized so that it was totally inefficient. Moreover, my v1 socket is quite bad ( oxyded at some place) . I ve made a good shield and corrected lead dress on v1 , now the little monster works perfectly well!
Thanks men for your help!
I hope i could do it for you one of this day
It s a noob mistake! The input shielded wasn t well realized so that it was totally inefficient. Moreover, my v1 socket is quite bad ( oxyded at some place) . I ve made a good shield and corrected lead dress on v1 , now the little monster works perfectly well!
Thanks men for your help!
I hope i could do it for you one of this day
-
Tone Lover
- Posts: 261
- Joined: Tue Apr 27, 2010 4:39 am
- Location: Everett Wa.
Re: Marshall 18w clone tmb problem
Skev dont feel bad, I have built a few. Dont want to embarass myself but.
I still miss 1 ground somewhere in almost every amp I build.
It has helped to be much better at trouble shooting (LOL).
Bill
I still miss 1 ground somewhere in almost every amp I build.
It has helped to be much better at trouble shooting (LOL).
Bill
Re: Marshall 18w clone tmb problem
LOL I just recently built a Marshall.....well Jelle rebuilt it for me after I got frustrated. Anyway Jelle didn't undo everything I wired. He just redid the board connections and most of the grounds. He got 95% done in one night and I just needed to complete one ground and the input wiring or something stupid which I did the next night at home. I fired up the amp and it had a lot of hum. It took me a week to realize that I had never hooked up the ground to the IEC connector. DOH!
BTW the Marshall sounds great Jelle!
BTW the Marshall sounds great Jelle!
Re: Marshall 18w clone tmb problem
This schematic is quite easy...but i paid my lack of knowledges in amp built! Lol
It won t be my last mistake !
Next time, i will build a single ended 6l6 type !!
Building amp is really something great and when you find people who accept to teach you what they know and learn from their own mistake , the loop is looped!
I don t search to sell or build the best amp possible, but i like to learn about it and when it works find after after long winter evenings , i m a bit proud ! Lol
Next step: play with those amp during a gig/concert!
It won t be my last mistake !
Next time, i will build a single ended 6l6 type !!
Building amp is really something great and when you find people who accept to teach you what they know and learn from their own mistake , the loop is looped!
I don t search to sell or build the best amp possible, but i like to learn about it and when it works find after after long winter evenings , i m a bit proud ! Lol
Next step: play with those amp during a gig/concert!