![]() ![]() Pictures of the Ultra Transistor 101 radio Side view of set Description of the Ultra Transistor 101 radio I have purchased some AA battery holders which I'll use to power the set and in the second part of this post, when I deal with the refurbishment and repair, I'll explain any steps I had to take to get it working. This model used two 4.5 V batteries in series to supply a -9v rail for the PHP transistors as well as a -4.5v rail which provides bias to the output stage transistors via the loudspeaker 1. Internally, the actual chassis which the PCB is bolted to seems to be a bit loose in the cabinet, but I don't yet know why this is.Įlectrically, at the moment I don't know if the radio is working because I don't have a set of batteries to try it with. The bottom of the unit has got some flaky paint, but that should clean up and if necessary could be re-painted without too much trouble. The front panel, which seems to be made from a plasticized hardboard, is also in good condition with all the transfers showing, and the visible part of the case itself just needs a bit of a clean and polish to be as new. Camera Blog Blog posts written for the camera section of the site.Browse Cameras Browse and filter vintage camera articles.Camera Makers The most popular camera makes.Camera Type Cameras categorized by their type.About Photos About the Photos section of this site. ![]()
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