Sorry, I recall seeing this post and I'm sure I meant to reply to it. I'll check mine and another I have access to and let you know... in the meantime a couple of quick questions on your one - what is it's serial number, and does it have a push-action on the tuning shaft to trigger a dial light? Another collector recalls this feature on one he saw many many years ago - Mine and another that I have seen do not have this. I'm interested to know if it was an early feature that was removed or a later addition. The models I've seen without it have serial numbers as follows: A26780 A26955
This battery-transistor design seems quite an interesting take on the Colt, and I would hazard a guess that this is by far the rarest of all Colt models - so it can't have been very popular? Possibly because its a mantle radio masquerading as a portable? Or maybe they all got used as portables and the cases got smashed so they were all thrown out? Yours is only the third one I have heard of, although I'm sure there are more out there hiding.
As an aside, I'm also trying to find out the meaning of the A suffix on serial codes - my best guess is they were models made by Teevee Radio during their short stint making Colts since they only seem to exist between 1959 and 1962(?)ish which is around the time they were said to have been producing them. I have a few examples of Colts with this serial numbering system - the earliest, A00438, looks to be a later model 5B7 chassis with a 1959 speaker code.
Update - both pots in mine are 10k although the tone control appears to have been replaced with a switched one with the switch guts stripped out - either that or Bell got a deal on switched pots and stripped out the switch mechanism to use them for tone controls.
There are no personal problems that can't be solved with the liberal application of high explosives