UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - G & E Bradley CT-471

Sinewave · 8th Oct 2018, 4:26 pm

The spec of the OC117 is here, I hope it's correct

https://alltransistors.com/transisto...ansistor=44466

So I'm trying to find a replacement by matching as close as I can some of the parameters. I'm wondering if a silicon replacement would work, given that some of them require a slightly higher forward bias voltage drop.

Searching here and the rest of the internet for an equivalent brings up results for transistors no longer in production.

8th Oct 2018, 4:26 pm	#20
Sinewave Octode Join Date: May 2016 Location: Oxfordshire/Bucks borders, UK. Posts: 1,604	Re: G & E Bradley CT-471 The spec of the OC117 is here, I hope it's correct https://alltransistors.com/transisto...ansistor=44466 So I'm trying to find a replacement by matching as close as I can some of the parameters. I'm wondering if a silicon replacement would work, given that some of them require a slightly higher forward bias voltage drop. Searching here and the rest of the internet for an equivalent brings up results for transistors no longer in production. __________________ Avometer, vintage Fluke and Marconi collector. Also interested in vintage Yaesu and KW.