Jumper channels on your baseman 5F6-A? Internal or external?

[chuckulaa]

I was curious how or if you jumper your 5E3 or 5F6-A fender tweed amps? I am particularly curious as to if you jumper it internally, or if you just use a patch cable.

Internal jumper approach:

[img:526:478]http://www.tdpri.com/telephoto/uploads/53023/nr571.jpg[/img]
[img:690:988]http://www.tdpri.com/telephoto/uploads/53023/nr581.jpg[/img]

The credit for this jumper circuit diagram goes to sookwinder for a post at offsetguitars,com

External patch cable jumper approach:

[img:400:299]http://www.tdpri.com/telephoto/uploads/ ... 747241.jpg[/img]

Have any of you experimented with both of these approaches? I'd like to hear your comments on the differences between the two.

It seems that the external patch jumpering approach would send a weaker signal to the linked channel.

So how about it, anyone have anything to say about the matter?

[Firestorm]

The channels interract very differently in the 5E3 compared to the 5F6A, so that's really two questions. I've built 5F6Aish amps where the jumpers were external. Pretty flexible that way. But I did one where the jumper was internal and you'd just dial up different channel levels. That one was designed to defeat the jumper if two instruments were plugged in. What the guy wanted.

[M Fowler]

I build the 5f6a with high/low level controls to mix rather then jumper.

[chuckulaa]

MFowler, very cool

Did you just jumper the inputs, and attach variable resistors to the basic circuit?

[pdf64]

I figured out a method so that with 2 jack sockets, the 2 channels can be auto-linked or used independently, see http://s963.photobucket.com/user/pdf64/ ... c.png.html
The two spare input socket holes can be used for additional control pots / multiposition rotary switches for selecting various 'bright', cathode bypass or coupling caps (as per Orange FAQ feature) options.
Pete

[M Fowler]

MFowler, very cool

Did you just jumper the inputs, and attach variable resistors to the basic circuit?

See schematic.

One amp is cathode bias like the schematic but the amp pictured is fixed bias. Stock mojotone BF bassman chassis with mojotone designed faceplate.

[Diablo1]

I plug my guitar cord into a Y-cord, inexpensive and full signal to both channels. And it works for ALL my amps.