Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Messages - Sfmag1

Pages: [1]
Amplifier Discussion / Re: Official SSGuitar kit, on-board options
« on: April 25, 2020, 11:52:17 AM »
I would say for busking outdoors, a 12volt battery to power probably a class d amp. Simple but loud is the way to go. I would have to say use Phil jones briefcase and double four as models. xP

Amplifier Discussion / Re: Unicord Stage 65b Output Transistors
« on: June 09, 2019, 04:38:01 AM »
Ok mounted to chassis and so far so good. :dbtu:

Amplifier Discussion / Transistors for Unicord Stage 65b Amp
« on: May 26, 2019, 05:50:24 AM »
Hello. I'm trying to locate and purchase these TO-92 case audio transistors in a 1977 japanese made amp but even a google search does not recognize the numbers. Any help or suggestions? Thanks


Amplifier Discussion / Re: Unicord Stage 65b Output Transistors
« on: April 30, 2019, 06:49:58 PM »
Ok noted and will try. ??? 

Amplifier Discussion / Unicord Stage 65b Output Transistors
« on: April 29, 2019, 02:00:22 AM »
Hello. I have been working on a Unicord "Stage" 65b amplifier and ordered and installed replacement output transistors Sanyo B507E and D313E. They work alright with a signal from a generator or guitar at very low volume but  heat up and will burn/short out completely if left on with a louder volume setting. The sound is good out of an 8 ohm speaker until it is turned up, then they heat up. They would be normally mounted to the chassis to dissipate heat but they are burning hot anyway. The speaker reads ok at 8 ohms. I am suspecting the Chinese transistors I bought from e-bay are cheap junk and that is the problem. Any experience or advice on this? Should I buy an equivalent?

Schematics and Layouts / Re: Univox Stage 65b
« on: April 12, 2019, 05:45:51 AM »
Ok man great thanks Drgonz78! 
For some reason the pics were not showing up last time I visited that post. Some of the components are different, as is the layout but it is very close. I will try to modify that schem to show the bass version and then post it here. And thanks to the person who made the jpegs. :dbtu:

Schematics and Layouts / Univox Stage 65b
« on: March 28, 2019, 09:12:59 AM »
Hello. I'm looking for a schematic for the Stage 65b amp head. I've looked on the internet to no avail so far. Can anyone help out or steer me in the right direction? :dbtu:

Pages: [1]