[Drakelist] TR7 ALC access when not using PS7

I am sure that are at least a few folks who are using the TR7 with a power supply other than the PS7. And I am thinking of those some are using linears. So where and how did you gain access to the ALC line of the TR7? TNX es 73, Ron WD8SBB ___

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Re: [Drakelist] TR7 ALC access when not using PS7

Ron - Pin 9 of the PS-7 Control connector. The 10 Pin Jones connector. Pin 10 is ground. Some day when you're bored, you could go in and link Pin 9 over to that SPARE phono jack just above it. 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service

Re: [Drakelist] TR7 ALC access when not using PS7

Ron - Oh, and the VOX relay contact is right next to it on Pin 8. A REAL relay contact too, none of this wimpy reed relay stuff. :-) 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service Supplement CDs www.k4oah.com Ron wrote: I am sure that are

Re: [Drakelist] TR7 ALC access when not using PS7

You need a Cinch-Jones S-310 CCT plug and connect the shield of the alc cable to pin 10. Connect the center to pin 9. Plug into the matching 10 pin PS7 socket on the rear of the TR7. 73, Joe KC9LAD At 07:41 AM 1/28/2012, you wrote: I am sure that are at least a few folks who are using the TR7

Re: [Drakelist] TR7 ALC access when not using PS7

Curious as to why the VOX and ALC come from the power supply rather than the rig itself. I always thought that was a strange arrangement. Fortunately, I have a stereo cable with color coded channels so it makes connection simple but would be simpler to run shorter leads directly from the rig

Re: [Drakelist] TR7 ALC access when not using PS7

On Sat, 28 Jan 2012 09:36:20 -0500, Garey Barrell wrote: Oh, and the VOX relay contact is right next to it on Pin 8. A REAL relay contact too, none of this wimpy reed relay stuff. :-) Or surface mount transistors. 73 -Jim -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7,

Re: [Drakelist] TR7 ALC access when not using PS7

On Sat, 28 Jan 2012 10:32:36 -0500 (EST), K9sqg wrote: Curious as to why the VOX and ALC come from the power supply rather than the rig itself. I always thought that was a strange arrangement. Perhaps they though the rear panel of the radio was getting too cluttered. More puzzling/annoying to

Re: [Drakelist] TR7 ALC access when not using PS7

Remember Jim, today's engineering staff (or should I say finance and marketing engineering staff) is not to worry about your cost of ownership. They are there to get the equipment sold at best profit margin possible and then obsoleted so that you will buy another. It's all about cash flow.

Re: [Drakelist] TR7 ALC access when not using PS7

Ron - I'd be inclined to use the fixed 'line' AUDIO jack. The counter input can be handy, obviously as a counter, but also as a good quick troubleshooting tool for the radio. The other alternative of course is to get the proper connector, they are available, or use the 'spade' type power

Re: [Drakelist] TR7 ALC access when not using PS7

Hi Jim: Those Din types are really no harder to find than the multi-pin Jones conn's ! :) Curt On 1/28/2012 11:01 AM, Jim Shorney wrote: On Sat, 28 Jan 2012 10:32:36 -0500 (EST), K9sqg wrote: Curious as to why the VOX and ALC come from the power supply rather than the rig itself. I

Re: [Drakelist] TR7 ALC access when not using PS7

On Sat, 28 Jan 2012 11:53:15 -0500, Garey Barrell wrote: I'd be inclined to use the fixed 'line' AUDIO jack. The counter input can be handy, obviously as a counter, but also as a good quick troubleshooting tool for the radio. Or just drill a hole for another RCA jack, or even a mini earphone

Re: [Drakelist] TR7 ALC access when not using PS7

Yeah, I understand engineering to price points. On the smaller rigs, it's more an issue of availabe real estate on the rear panel. Doesn't mean I have to LIKE it... :) 73 -Jim On Sat, 28 Jan 2012 08:31:30 -0800 (PST), Ron wrote: Remember Jim, today's engineering staff (or should I say finance

Re: [Drakelist] TR7 ALC access when not using PS7

Ron - Yes, that is a good way to speed up the amp keying. A half mA shouldn't be a problem, those lines are 'fused' very closely, but they should survive that! :-) Saves a whole ~25 mSec!! 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service

Re: [Drakelist] TR7 ALC access when not using PS7

On Sat, 28 Jan 2012 13:08:15 -0500, Garey Barrell wrote: A half mA shouldn't be a problem, those lines are 'fused' very closely, but they should survive that! :-) That's actually funny, because years ago I first heard tech calling transistors three-legged fuses. A corollary to Murphy's Law

Re: [Drakelist] TR7 ALC access when not using PS7

Jim Shorney wrote: On Sat, 28 Jan 2012 13:08:15 -0500, Garey Barrell wrote: A half mA shouldn't be a problem, those lines are 'fused' very closely, but they should survive that! :-) That's actually funny, because years ago I first heard tech calling transistors three-legged fuses. A

Re: [Drakelist] TR7 ALC access when not using PS7

On Sat, 28 Jan 2012 13:52:08 -0500, Garey Barrell wrote: you can SEE a little blue flash through the ceramic cap Nice of them to design the device to contain the magic blue smoke, though. 73 -Jim -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000,

[Drakelist] Source for pushbutton switches C-4

Anyone have a source (and/or part number) for the on/off push button switches controlling the C-4 Console Power? Wayne WB5FEX, Oklahoma City -Original Message- From: drakelist-boun...@zerobeat.net [mailto:drakelist-boun...@zerobeat.net] On Behalf Of drakelist-requ...@zerobeat.net Sent: