Parallel effects loop for Marshall style amps

Cerf · Post by **Cerf** » Mon Mar 19, 2007 7:02 am

thinlizzy wrote:Oke, just how many of you have actually finisched this loop and put it in an amp?
I put it in an jmp 2204 and it is by far the best loop I ever had.
I made it on a small board (PTP) and place the tube on it too. I place the whole board ouside the chassis (inside the head) so I drilled no holles in Amp

Marcel

Yeah, it's true, Larry did a swell job, so he can decide, who's gettin' his circuit.Marcel, could you post a pic of your outside loop box?
Thanks,
Cerf

thinlizzy · Post by **thinlizzy** » Mon Mar 19, 2007 8:13 am

No problem....BUT only if Larry is oke with it!

Larry?

novosibir · Post by **novosibir** » Mon Mar 19, 2007 8:31 am

thinlizzy wrote:No problem....BUT only if Larry is oke with it!

Send me the photo to my email! Then I can decide this.

Larry

rockstah · Post by **rockstah** » Mon Mar 19, 2007 11:20 am

i was thinking of doing the same thing - would love to see the pics.

franc · Post by **franc** » Mon Mar 19, 2007 3:07 pm

Yeah I was curious too how people actually integrated this into their amps...

thinlizzy · Post by **thinlizzy** » Tue Mar 20, 2007 4:58 am

I'll try to send Larry the pics tonight.

Marcel

thinlizzy · Post by **thinlizzy** » Tue Mar 20, 2007 5:53 pm

Oke lets see if this work....
A picture of the "Larry" effectloop in my jmp 2204, no holes drilled...

joshwilson3 · Post by **joshwilson3** » Tue Mar 20, 2007 6:24 pm

Looks good. Does it have an on/off switch? The schematic I got has a place for an on/off switch. I'm guessing it's a DPDT.

I was looking at going with a DPDT mini switch so I can turn the loop on and off.

Larry,

Are there any particular type/brand of caps/resistors you like to use in this loop?

thinlizzy · Post by **thinlizzy** » Tue Mar 20, 2007 6:46 pm

[quote="joshwilson3"]Looks good. Does it have an on/off switch? The schematic I got has a place for an on/off switch. I'm guessing it's a DPDT.
quote]

No I use A/B box to make or break the loop, I use the loop as a solo boost with a delay in it. Works perfectly, and when I break the loop I dont hear any different when the remaining part of the loop are still in the signal chain!

Marcel

novosibir · Post by **novosibir** » Tue Mar 20, 2007 7:09 pm

joshwilson3 wrote:Are there any particular type/brand of caps/resistors you like to use in this loop?

No, no special recommendation from my side - but I'd recommend to continue with the cap/resistor types from your preamp section, to keep the character of the amp.

Larry

novosibir · Post by **novosibir** » Tue Mar 20, 2007 7:12 pm

thinlizzy wrote:A picture of the "Larry" effectloop in my jmp 2204, no holes drilled...

Great work! And an excellent idea, to leave the loop section outside of the chassis, but include it into the head shell

Larry

rockstah · Post by **rockstah** » Tue Mar 20, 2007 7:32 pm

brilliant!
how about onemore shot showing where teh wires connect in the chassis?

Cerf · Post by **Cerf** » Wed Mar 21, 2007 5:46 am

Good work, thanks for the pic.Some more pics (inside chassis etc.) would be fine indeed.
Cerf

jerrydyer · Post by **jerrydyer** » Wed Mar 21, 2007 12:36 pm

NICE. I have mine on two 5 pole turrets strips facing each other and then my amp already had the 4th tube socket (for once in my life I had foresight) but your annex idea is awesome. maybe condense it and box it.

rockstah · Post by **rockstah** » Wed Mar 21, 2007 12:39 pm

jerrydyer wrote:NICE. I have mine on two 5 pole turrets strips facing each other and then my amp already had the 4th tube socket (for once in my life I had foresight) but your annex idea is awesome. maybe condense it and box it.

put it in a box is what i want to do with it!

Metropoulos Forum

Parallel effects loop for Marshall style amps

Great

loop

Re: loop