Craig Roberts <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- Well, I thought I had it figured out, but...
Here's my question: what's the best way to enable reception of the LF ranges on my TR-7 given these circumstances? --
I have an AUX-7 board installed with one module aboard. It's the 0 - 500 KHz one, selectable from AUX Program switch position 1. I'd like to leave this in place but add the 500 - 100 KHz and 1000 - 1500 KHz ranges to switch positions 2 and 3 respectively. I have enough DIP headers and diodes to make my own "modules" to plug into the AUX-7 board, but have no clue how to wire the the headers with the diodes. I've seen a programming matrix, but find it baffling. I need a picture, 'cuz I'm a simple fellow. This also requires digging into the bowels of the rig to get to the AUX-7 board. Drake says this is a matter of removing the display board only. Others say the front panel must be dropped, necessitating a delicate bandswitch shaft extraction (which probably isn't as surgically difficult as all that). Is there a preferred way of getting to the AUX-7 board?
A simpler way to achieve the LF coverage, it seems, would be to install diodes on the parent board as Drake suggested. Since I already have a module in position 1 for 0 - 500 KHz., I'd skip the group of diodes for that range (eliminating the involvement of foil # 17). My #10 foil, by the way, has already been severed in order to enable 1.5 - 30 MHz transmit (the WARC bands, in my case).
Does one method have any advantage over the other? The module-making would be more cool and "techie", but the parent board diode tacking method seems a lot simple and certainly less invasive. I generally favor less invasive measures on radios I don't know well. Tube rigs don't bother me, but solid-state ones with all their little delicate thingies are a bit intimidating to me. I suppose I need to get over it!
Thanks and 73, Craig W3CRR
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