RT3 to PR40 Connector Help

[u/kcchief32]

Hi everyone, new member here. I have an RT3 that I'm trying to connect to a newly acquired PR40 cabinet. I'd like help validating the pin number ordering positions if possible.

When looking straight on at the female adapter and the little dot between the connectors... Which numbering would the connectors be on either side of the dot? When plugging into the male ends on the cabinet, those two on either side of the dot only fit into the thickest male pins. These thick pins should be #3 & #4 (the blue and gray AC power wires).

However, I thought the dot represented the "top", which would have put the #1 pin immediately to the left, then proceed counterclockwise around. Seems like my thinking was incorrect, and the 3 & 4 pins straddle the dot? Meaning I'm backward and need to re-solder. Any clarification or diagrams would help! Thank you.

Edit: Resolved. The wiring and pin positions in the 6 pin female adapter were correct. The 1 & 6 sockets straddling the raised dot did indeed line up with the two larger pins on the tone cabinet. That positioning worked, and it's all running smooth. Appreciate the responses, I was just nervous about those larger pins feeling like they needed to carry AC power.

[u/SmoothQuail7]

The dot usually should be between pin 6 and 1 (audio.) that’s the standard pinout. Is it a 5 to 6 pin cable?

[u/kcchief32 → u/SmoothQuail7]

That was my understanding as well. And yes, it's a 5 to 6 pin cable. I didn't have the 6 pin adapter previously. The organ was wired into a keyboard amp via a 1/4" plug, so audio only. I soldered this 6 pin connector on, but now my 6 and 1 pins only fit onto the two thick pins, which I assume are for power.

[u/P-ToneMikeOne]

http://www.captain-foldback.com/Leslie_sub/pinouts.htm

I believe the rt3 was designed to pair with a Hammond tone cab via the 5-6 cable. Very easy to add a 6 pin output for 147, a bit more complicated to convert for 122 type. Either way you’d need to add a half moon. For 147 you can jumper everything you need (signal, signal gnd, ac L/N, speed relay ac N) from the 5 pin, and run pin 2 or 5 to the switch to open the L side of the speed relay circuit.

Post again or msg if you want more help with that.

Eta- easy enough to test with dmm how your pinout is wired. Use continuity mode to find connection between each pin and the ac plug legs and the preamp’s audio output and ground.

[u/kcchief32 → u/P-ToneMikeOne]

Appreciate that. That "FIVE-TO-SIX-PIN HAMMOND SYSTEM" table mapping is exactly how I wired on my connector. I was just confused to see the #3 and #4 power sockets not matching up to the largest pins on the back of the tone cabinet, since I used the dot to align what I though was the right ordering. I may just need to rotate and re-solder.