Parallel effects loop for Marshall style amps

Bad Kitty · Post by **Bad Kitty** » Wed Mar 21, 2007 1:31 pm

I was thinking maybe put it into a box and have a DIN plug in the back of the amp. Like a MIDI plug or something similar. That way there you could have it sitting anywhere you want.

Mike

jerrydyer · Post by **jerrydyer** » Wed Mar 21, 2007 3:06 pm

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

I know, a marshall box yes but, I was thinking a little external box that can be easily moved, removed etc. Good one though, If that was a little humor.

Bad Kitty · Post by **Bad Kitty** » Wed Mar 21, 2007 3:43 pm

That's what I was thinking also.
Put the curcuitry and the tube in a box and connect it to the amp with a multi-connection DIN plug. I don't know about the length of the cable since there would be high voltage in it, but I would think it could be long enough to go on top of the amp.

Mike

rockstah · Post by **rockstah** » Wed Mar 21, 2007 4:35 pm

jerrydyer wrote:Mark wrote "put it in a box is what i want to do with it!"

I know, a marshall box yes but, I was thinking a little external box that can be easily moved, removed etc. Good one though, If that was a little humor.

no that what i was saying - in its own small box - have been thinking that since i first saw the schematic.

thinlizzy · Post by **thinlizzy** » Thu Mar 22, 2007 4:12 am

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

Really no big deal, shielded wire fom master to effect loop and from the effect loop back to the PI. One wire for ground and one for the high voltage. Thats it.
The loop is dead quiet...
I will get some picture's soon

novosibir · Post by **novosibir** » Thu Mar 22, 2007 4:32 am

thinlizzy wrote:Really no big deal, shielded wire fom master to effect loop and from the effect loop back to the PI. One wire for ground and one for the high voltage. Thats it.

And still a drilled pair of cables for the tube's filament

Larry

thinlizzy · Post by **thinlizzy** » Thu Mar 22, 2007 4:35 am

novosibir wrote:
thinlizzy wrote:Really no big deal, shielded wire fom master to effect loop and from the effect loop back to the PI. One wire for ground and one for the high voltage. Thats it.
And still a drilled pair of cables for the tube's filament

Larry

Oeps forgot about those two, so basicly 6 wires are going in the amp. Actually 5 wire, I mount the ground on the outside of the chassis.

MacGaden · Post by **MacGaden** » Thu Mar 22, 2007 4:50 am

What would the requirements for a powersupply for this be if you wanted to turn it into an external rack Stereo LarryLator

franc · Post by **franc** » Sun Apr 01, 2007 3:26 am

Would it be a problem (hum, oscillation) in a Superlead, to put the new tube to the left of V1 put an extra, small, turret board to the left of the original one and build the loop like that?

So not moving V1 and V2 and 'inserting' a new V3 for the loop?

novosibir · Post by **novosibir** » Sun Apr 01, 2007 5:41 am

No problem!

Only insure, that there no crosstalk occurs between the main board/input jacks and the loop board! You addidional might put a vertical aluminum shield between both - but the tube sockets are enough apart from each other.

Larry

franc · Post by **franc** » Sun Apr 01, 2007 5:53 am

Okay thanks.

I am deciding between doing that or having a specific turret board made with the loop after the 2nd tube, following the signal flow.

geri · Post by **geri** » Tue Apr 24, 2007 2:33 pm

Larry,

many thanks for this excellent loop.
It works really well !!!!!

I'm happy now...

novosibir · Post by **novosibir** » Tue May 08, 2007 5:14 am

Until today a total of 75 requests for the parallel fx loop schem from our Metro board members - not bad

But I'd like to see some more reports of users here, who have buildt and tried it yet

Larry

thinlizzy · Post by **thinlizzy** » Tue May 08, 2007 9:26 am

I'm building it for the second time in my 2203 clone, I can recomend this effectloop to every one.

MArcel

franc · Post by **franc** » Tue May 08, 2007 10:13 am

I'm still waiting for an opportunity to build it.
Also still haven't found the ideal way to fit it inside a 50W chassis...

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Parallel effects loop for Marshall style amps

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