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#11
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Roger D Johnson wrote:
It must have taken him hours of carefully bending leads so he could get it into the case without shorting anything. Needless to say, virtually every stage in the RX was oscillating. I did a bunch of cutting and resoldering and finally got it working. I wish I had a picture of my face when I pulled it out of the case! an artificial rats nest... what a hoot! best regards... -- randy guttery A Tender Tale - a page dedicated to those Ships and Crews so vital to the United States Silent Service: http://tendertale.com |
#12
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The tube lineup is from the later generation of miniature tubes - which
means mid 60's. It looks like the first conversion oscillator is crystal controlled and the receiver uses a tunable if stage - similar to Drake. That means it would be easy to change thr crystal controlled first conversion stage and cover any other range. Might be a good 10 meter receiver - or perhaps the 12 meter band. There could be some value to a cb collector, since few home brew receivers were made. One of the pots might be noise limiting adjustment, or one could be for a Q-multiplier. Colin K7FM |
#13
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"COLIN LAMB" wrote in message
ink.net... The tube lineup is from the later generation of miniature tubes - which means mid 60's. It looks like the first conversion oscillator is crystal controlled and the receiver uses a tunable if stage - similar to Drake. That means it would be easy to change thr crystal controlled first conversion stage and cover any other range. Might be a good 10 meter receiver - or perhaps the 12 meter band. There could be some value to a cb collector, since few home brew receivers were made. One of the pots might be noise limiting adjustment, or one could be for a Q-multiplier. Colin K7FM Didn't one issue of like an RCA Tube Manual - have a schematic in it for a cb receiver or "transceiver"? I know I've seen them out there. |
#14
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On Thu, 19 Apr 2007 17:38:55 +0000, Michael Black wrote:
I thought building a kit CB transceiver was illegal due to the type acceptance issue? .... So perhaps the type acceptance came a bit later? I can't remember (not that I was aware of such things at the time, but I have read lots of back issues of magazines). ISTR: - Heath equipment was acceptable contingent on being assembled according to the instructions. There was a notice in some of the manuals about that - ISTR some devices where one part was a Part 15 label which the builder was to sign & date & stick to the completed kit certifying they'd followed the instructions. - It was legal to homebrew CB gear in the early days of the service, but that rule was changed - well before the 1960s. (I'm not sure it was *ever* legal to homebrew 27MHz CB gear, it may have only been legal for the old 470MHz stuff) |
#15
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Hi,
On Fri, 20 Apr 2007 04:34:00 +0000, Doug Smith W9WI wrote: - It was legal to homebrew CB gear in the early days of the service, but that rule was changed - well before the 1960s. (I'm not sure it was *ever* legal to homebrew 27MHz CB gear, it may have only been legal for the old 470MHz stuff) It may not have been in the US, but before regulation and since deregulation, one can build up to 5 CB's and call them prototypes in .ca land, as long as they meet Industry Canada (then the Department of Communications) specifications. Maybe it's a Canuck rig? Cheers, __ Gregg |
#16
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Just for clarification on my last post, info can be found in RSS210,
section 5.14 of Industry Canada's regulations. Home built for personal use, not prototypes. My err. Cheers, __ Gregg |
#17
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IN the sixties (and early seventies), it was common for the hobby
electronic magazines to treat CB as a hobby. This was especially so for "Electronics Illustrated" that had quite a few construction articles, going from simple to quite sophisticated. In the early sixties I ordered one of those cb kits from an electronics magazine. It consisted of a crudely punched chassis, a bag of parts and a schematic. I never did get it to work. I thought building a kit CB transceiver was illegal due to the type acceptance issue? ========================================= Building a CB 'receiver' from a kit can't be illegal. Frank GM0CSZ / KN6WH |
#18
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Highland Ham wrote:
I thought building a kit CB transceiver was illegal due to the type acceptance issue? ========================================= Building a CB 'receiver' from a kit can't be illegal. Surely there are those amongst us that built 27MHz walkie-talkie kits from Allied (Knight) and others in the 1960's... Regards, Michael |
#19
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msg wrote:
Surely there are those amongst us that built 27MHz walkie-talkie kits from Allied (Knight) and others in the 1960's... Back in the '60's - I was building AM broadcast transmitters, not CBs - however - here in ought 7 - I have a 1962 Allied catalog in which the back section is a KnightKit catalog. On page 408 there is a C-11 Citizens Band Transceiver Kit ($39.95). It transmits on any 1 of 22 CB channels depending on crystal installed, and it manually tunes all 22 CB channels. It does not list the tubes, but does note it's a superhet. On the next page is a model C-27 Deluxe Transceiver Kit - for reception it too manually tunes all 22 channels - plus has provisions for two crystal controlled channels. The same switch also selects one of two transmit frequencies. This is a dual conversion receiver, and while it again does not list the tube compliment - it does say "7 dual-purpose tubes, 2 single-purpose tubes, VR and rectifier". Since it mentions regulated supplies for the oscillators, pretty sure that's the "VR". $79.95 plus 2nd crystals - $1.95 each (transmit or receive, specify channel). best regards... -- randy guttery A Tender Tale - a page dedicated to those Ships and Crews so vital to the United States Silent Service: http://tendertale.com |
#20
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![]() Thanks for all the replies. The chassis is very professionally done. The wiring is not so well done. The filter cap wiring on the transmitter socket divider is a joke. Thus the idea of a kit seems reasonable. There is only one crystal socket. So the Knight Kit seems to be out. Family issues are keeping me from more work on the rig right now, So I'll have to just wait see what else is posted here, for a while before trying to draw a schematic I really am impressed by those that want to help, plus I've learned some things. Thankjs again. Jim |
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