Dragged the Drakes back out...

[N8YX]

I wish I wrote that. Pretty cool sentence no matter how you came by that information. Nevertheless, how did you?

Google Search is your friend. Page 7 of the results of a search for "Drake TR7 modifications" yields the following:

http://www.paws.dircon.co.uk/drake.htm

Also amazing cool all the radios you have. Are there Quonset huts and a cherry Spruce Goose involved? Are you Howard Hughes?

Nope...just a few assorted storage shelves and racks in the basement, a couple of bedroom closets and miscellaneous nooks and crannies throughout the house. To me, the fun in ham radio is tinkering...restoring/modifying gear...and eventually passing it along to others. I darn sure ain't makng any money at it but I'm not losing much, either - and the old "classics" are given a reprieve from the boneyard.

[W1GUH]

Google Search is your friend. Page 7 of the results of a search for "Drake TR7 modifications" yields the following:

http://www.paws.dircon.co.uk/drake.htm


Nope...just a few assorted storage shelves and racks in the basement, a couple of bedroom closets and miscellaneous nooks and crannies throughout the house. To me, the fun in ham radio is tinkering...restoring/modifying gear...and eventually passing it along to others. I darn sure ain't makng any money at it but I'm not losing much, either - and the old "classics" are given a reprieve from the boneyard.

And you get to enjoy 'em while you've got 'em.

[KG4CGC]

And don't forget the "no-filter" filter option -- a resistor.

Oh wow. Could you use a variable resistor there?

[N8YX]

Oh wow. Could you use a variable resistor there?

No - the impedance across the IF strip has to remain constant in order to prevent unwanted responses, crosstalk and so forth. Drake fitted a 390 ohm resistor in the empty filter position on the TR7A and R7A, and the actual impedance value of those filters is ~1.5K, if memory serves correctly.