5E3M Deluxe Micro 1 Watt Tweed
Moderators: pompeiisneaks, Colossal
- martin manning
- Posts: 13210
- Joined: Sun Jul 06, 2008 12:43 am
- Location: 39°06' N 84°30' W
Re: 5E3M Deluxe Micro 1 Watt Tweed
Where did this idea come from?
Re: 5E3M Deluxe Micro 1 Watt Tweed
Surely those grounds have to connect to the pre-amp / chassis ground somewhere?Instead of grounding the center taps to the chassis they are connected to the power tube cathode resistor and first filter cap 'ground' connections
This seems a bit along the lines of Merlin's multiple star grounds arrangement?
My band:- http://www.youtube.com/user/RedwingBand
Re: 5E3M Deluxe Micro 1 Watt Tweed
The ' power amp floating ground' has not been implemented but now that I've looked closer I realize there is no return path for the preamp ground which attaches to the chassis at the input jack. I'll do more research and revise the schematic and layout.
Re: 5E3M Deluxe Micro 1 Watt Tweed
I went ahead and reverted the the classic power amp grounding scheme.
[img798]http://robrobinette.com/images/Guitar/D ... _small.png[/img]
[img798]http://robrobinette.com/images/Guitar/D ... _small.png[/img]
- martin manning
- Posts: 13210
- Joined: Sun Jul 06, 2008 12:43 am
- Location: 39°06' N 84°30' W
Re: 5E3M Deluxe Micro 1 Watt Tweed
There would be a lot of silence the way it was shown before, unless the CT was getting to ground in some other way.
Re: 5E3M Deluxe Micro 1 Watt Tweed
From the internet!martin manning wrote:Where did this idea come from?
I obviously missed a 'minor' detail in the design of the power amp floating ground, so, ah, nevermind.
Re: 5E3M Deluxe Micro 1 Watt Tweed
Here's an updated Deluxe Micro layout:
[img882]http://robrobinette.com/images/Guitar/D ... _small.png[/img]
[img882]http://robrobinette.com/images/Guitar/D ... _small.png[/img]
- dorrisant
- Posts: 2628
- Joined: Tue Sep 21, 2010 1:27 pm
- Location: Somewhere between a river and a cornfield
- Contact:
Re: 5E3M Deluxe Micro 1 Watt Tweed
No worries Gene!
Tony
Tony
"Education is what you're left with after you have forgotten what you have learned" - Enzo
Re: 5E3M Deluxe Micro 1 Watt Tweed
Here's a short sound clip of Deluxe Micro #3 using a Tele's neck pickup and 12" Tester speaker:
https://www.youtube.com/watch?v=aD42Z26Ua3A
https://www.youtube.com/watch?v=aD42Z26Ua3A
- davidjon_99
- Posts: 56
- Joined: Thu May 07, 2015 1:46 am
- Location: Houston, TX
Re: 5E3M Deluxe Micro 1 Watt Tweed
Sweet Rob. I've visited your web site several times and I'm very interested in this little amp. I'll probably build it after I finish the 5e3 I have in the queue next. BTW, I plan to do the cascaded input mod you have on your site. Thanks for putting all the time in for this and thanks especially for sharing it.robrob wrote:Here's a short sound clip of Deluxe Micro #3 using a Tele's neck pickup and 12" Tester speaker:
https://www.youtube.com/watch?v=aD42Z26Ua3A