hammond t202 strange wire coming ourt of back

[billmark57]

hello
today opened back of my t202 organ and found a wire with a jack plug on the end soldered on to a circuit board any idea hat this might be please . Not sure in or output as headphones on front of the organ
pic below
also what leslie cabinet would go with this organ looks like a 7 pin connection ? , or would the wire from that circuit board go into a modified 760 leslie
any help would be good
cheers
mark

[andyg]

That socket is for a Hammond D10 cabinet, straight speakers only. No leslie will work from it. Two good choices for the T series are the 145 or the 760/770. If you want tube distortion at high levels, 145 is best. Otherwise, in a home setting, there's little to choose between them - I've had them side by side - and the 760/770 should be less expensive. Either one will need a proper Leslie fitting kit, bought or home made (not rocket science!).

I suspect that the lead may be an input for something like an external drum machine of the era. Turn on, lick your finger and place it on the tip of the plug, Push the volume pedal forward and see if you can hear a slight hum. If so, that's almost certainly an input.

[Papus]

I'm not so sure about that tone cab output being speaker-level.
I traced that particular signal to the actual pin on the main amp board, and it is roughly line level ~250-1000mV (I forget the actual figure but it's close enough for running into a guitar pedal or small mixer).
The schematic also states something along those lines.
I'm using it as a convenient line out, into a Boss NS-2 guitar pedal which acts as a convenient buffer.
From memory, the "tone cab" signal is derived from the main amp speaker output, but attenuated to line level via a resistor network.
I have not noticed any change in the tone cab signal regardless of whether the internal Leslie is engaged or if headphones are plugged into the socket on the front of the speaker baffle.
I usually just plug a dummy jack into the headphone socket to obtain a nice clean signal to my 122 out of the tone cab output pin which I have wired to a 1/4" TS socket on the back of my T202. That way I don't get T202 internal speakers leaking into the mics on my 122.

[billmark57]

thanks for getting back to me . is the connection lead classed as a 6 or 7 pin . would this be the fitting kit -

Leslie - 9 pin to 6pin (Leslie 145/7) converter

also this needed for the 760 leslie to
cheers
mark

[andyg]

No, that kit is not what you want at all. So forget all about the 7 pin socket as you cannot use it for a standard leslie hook up. Papus uses his T in a very specific way for the music he makes and it works very well for what he does.

For 'normal' use, you need a 26-1 type kit for a 145/147. There are many such kits, but the 'standard' or 'universal' kit was the 7279. For a 760/770 you need the 'standard' 9 pin kit, which is the 7270. Schematics for both are available here: http://www.fishorgans.com/leslie_kits/

Both kits are simple, nothing special in them, and can be home built. You'll need to source an amphenol socket for the Leslie and, if you want them, the half moon switches. There are other switches that can be used but they don't look or work so good.

[handyczech]

In the states we called the cabinets "10 series", 10-82, 10-12, 10-43, depending on the furniture. They worked ok with the H-100, 200, 300, because main-echo switching was built in. The smaller organs of the era, E and T not so much. the reverse pair of pins was to prevent people from plugging in another series or leslie speaker. Kit references converting 7, 9, 0r 11 pin conversions have no application to this outlet. As I recall, there was a rather complex kit for this, but that was 50 years ago, and my mind, well...………….

[andyg]

There was indeed a special, and IIRC expensive, kit for the T back in the early 1970s. Our store never stocked it, we just used the 7279 and 7270 standard kits.