The Deacy’s preferred voltage is 7.5v.
Below are some pictures of the original manual that came the PR80 radio.
The amplifier circuit board with four germanium transistors. AC125, AC126 and 2 x AC128
Building an accurate reproduction was a very challenging project. The biggest difficulty was recreating the unique audio output transformer (the original factory closed in 2005 and specs are very hard to find). I milled the PCB, sourced period-correct components, and wound several transformers until I got the right sound and characteristics.
I purchased a box of high quality transformer lamination’s to make my transformers. I have left overs and can make more till the box runs out. Both the driver and audio transformer are bifilar wound as per the original transformers made in South Rhodesia in the 60’s. The audio output transformer is wound like the original for a 35 Ohm speaker but as demonstrated by Mr Deacon’s construction works fine with two 16 ohm speakers in parallel with a 1mfd cap. If you’re interested in any of the components to build your own please use the link below.
If you require other parts please send me an email.
