Hart conversion kits for Brenell reel-to-reel
Hi - I have just found a number of transistor circuits which I made up late 60's early 70's to convert a Brenell reel-to-reel to transistor - but in the end I sold the Brenell in standard form. I believe the circuits are Hart kits, but all the paperwork has gone missing in the 6 house moves I have made since then. Can anybody help me to identify these kits, or better still, supply the kit instructions etc.
regards Willy
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