On offer is a home constructed Capacitance Bridge / Square-wave Generator, which it has been suggested dates from the 1960s.

The front panel measures about 4.50 inches x 5.25 inches wide and the box is about 3.50 inches high [including the controls and sockets]. This is home constructed and contains two [2] OC71 transistors, a 2GT182 transistor, a six [6] position rotary switch, a ¼ inch Bulgin jack socket and numerous other components. It is battery operated from a 9v PP3 battery, and there is no base or bottom to the box.

This was amongst the contents of the workshop of an engineer and 'silent key' radio amateur, who had been involved in many aspects of amateur, military and professional wireless over many years. I do not have the time or facilities to test it, so it is being offered as 'sold as seen’ with the eBay listing as 'For parts or not working', without guarantee or returns, in order to comply with eBay’s terms and conditions. 

I have photographed the inside from several angles so that the buyer can see exactly what is on offer. ALL of the transistors have been fitted with their full length leads, and the 2GT182 transistor is listed in early Radiospares catalogues as being a ‘General purpose, medium power, PNP alloy junction type transistor, for use in oscillators, amplifiers and switching circuits’.

In the event of it not working, it should be easily repaired, as it is constructed using discrete components. It could also be used as a donor for a faulty or damaged similar instrument or re-purposed for another project. Buyers please note that there are NO leads, battery, circuit diagrams or head-phones included in the offer.

What is on offer and can be seen from the photographs, and the condition and description can better be judged from the photographs, which are of the actual capacitance bridge / square-wave generator on offer for sale.

This has been priced to sell, without reserve.

Please see the other items which I have on offer for sale.

BEFORE BIDDING, PLEASE READ ALL OF THE TERMS AND CONDITIONS BELOW.

1. PLEASE LOOK CLOSELY AT ALL OF THE PICTURES; THIS IS THE EXACT ITEM ON OFFER AND FORMS THE DESCRIPTION WHICH MAY TELL YOU SOMETHING THAT I HAVE NOT MENTIONED.

2. BUYERS PLEASE NOTE THAT PURCHASES ARE PACKED AND SENT IN BOXES, NOT PADDED BAGS, IN AN ATTEMPT TO PREVENT DAMAGE IN TRANSIT.

3. I WILL TRY TO COMBINE POSTAGE ON MULTIPLE PURCHASES WHERE POSSIBLE, PROVIDING THAT THE COMBINED WEIGHT DOES NOT EXCEED 2KG. IF IT DOES I WILL TRY AND PACK AND POST PARCELS WITH THE MOST BENEFICIAL COMBINATIONS.

4. OVERSEAS BUYERS PLEASE NOTE THAT I ONLY SEND PURCHASES THROUGH eBay Global Shipping Program. CHECK eBay CHARGES BEFORE BUYING AND NOTE THAT I CANNOT COMBINE POSTAGE COSTS WITH OTHER GOODS PURCHASED. EACH PURCHASE WILL BE PROPERLY PACKAGED AND THE POSTAGE STATED WILL BE CHARGED.

5. THE GLOBAL SHIPPING PROGRAMME ALREADY PROVIDES THE BUYER WITH AN INVOICE FOR ALL APPLICABLE ITEMS, POSTAGE AND IMPORT CHARGES. Unfortunately, eBay will NOT allow me to edit these charges, or even to offer a P&P discount. The buyer will directly pay the purchase price of the item to me, plus any domestic postage cost as specified in the listing.

6. If you are unhappy with any of my terms and conditions please feel free to buy from another seller.

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