Transonic 200 Output Transistors?
Moderators: rickenbrother, ajish4
Transonic 200 Output Transistors?
Hello!
I'm new to this board - great resource! I'm in the process of repairing a Transonic 200 with one blown output transistor. The original house-numbered Motorola devices are impossible to find. Any suggestions for replacements for both the NPN and PNP devices? I'm going to replace all of them and match up the paralleled pairs as well.
Thanks in advance for any help you can provide.
Mike
I'm new to this board - great resource! I'm in the process of repairing a Transonic 200 with one blown output transistor. The original house-numbered Motorola devices are impossible to find. Any suggestions for replacements for both the NPN and PNP devices? I'm going to replace all of them and match up the paralleled pairs as well.
Thanks in advance for any help you can provide.
Mike
Re: Transonic 200 Output Transistors?
Is it possible to get hold of spec sheets for the Motorola transistors? That's the only way I can think of that's going to enable you to source any kind of equivalents.
By "house numbered", I take it you mean that these transistors have Rickenbacker-specific part numbers on them, not Motorola ones, yes? If so, that's a tough call. A bit of a long shot, but I wonder if might be worth contacting Motorola and asking if they have any records of what transistors they supplied to Rickenbacker for these amps?
By "house numbered", I take it you mean that these transistors have Rickenbacker-specific part numbers on them, not Motorola ones, yes? If so, that's a tough call. A bit of a long shot, but I wonder if might be worth contacting Motorola and asking if they have any records of what transistors they supplied to Rickenbacker for these amps?
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Trace Elliot VA350/GP11 Mk1
Peavey TB-Raxx
2 BFM Omni 10.5 crossfire cabs
Roland Bass Cube 100
Re: Transonic 200 Output Transistors?
Please post good sharp, clear photos of these transistors (overall and close ups, from top, bottom and various angles) with the "house numbers" clearly legible, thanks.MBFab1 wrote:The original house-numbered Motorola devices are impossible to find.
Mike
Re: Transonic 200 Output Transistors?
Thanks for the responses! Yes, these transistors have a Rickenbacker-specific part number that I've been unable to cross reference to standard Motorola parts. The PNP part is SJ3564 and the NPN is SJ3565. Photos of both are attached.
Thanks for any help you can provide.
Mike
Thanks for any help you can provide.
Mike
Re: Transonic 200 Output Transistors?
I know someone on another forum who may be able to provide some guidance. When I can, I will post these and see what he may have to say as to substitutes.
Re: Transonic 200 Output Transistors?
Following this with interest...
2004 4003 JetGlo
Epiphone Jack Casady
Ovation Magnum 1
Mania VTB-4BS
Dean Stylist w/ John Birch Magnum II pups
Yamaha BB414
Trace Elliot VA350/GP11 Mk1
Peavey TB-Raxx
2 BFM Omni 10.5 crossfire cabs
Roland Bass Cube 100
Epiphone Jack Casady
Ovation Magnum 1
Mania VTB-4BS
Dean Stylist w/ John Birch Magnum II pups
Yamaha BB414
Trace Elliot VA350/GP11 Mk1
Peavey TB-Raxx
2 BFM Omni 10.5 crossfire cabs
Roland Bass Cube 100
Re: Transonic 200 Output Transistors?
Try these cross-referenced transistors.
MJ15003 and MJ15004
I got this information from the mouth of an aged horse.
MJ15003 and MJ15004
I got this information from the mouth of an aged horse.
Re: Transonic 200 Output Transistors?
Great! Thanks so much for your help with this...
I'll let you know how it turns out.
Mike
I'll let you know how it turns out.
Mike