UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Wave change switch as on-off switch

Argus25 · 12th Nov 2019, 4:21 am

PS: I forgot to mention in my post #8 if you choose to use a small pch mosfet, instead of the pnp transistor, a suitable part is the BS250:

https://www.diodes.com/assets/Datasheets/BS250P.pdf

Also if you use the mosfet, you could increase the two 1M resistor values much higher to 4.7M or 10M if you wanted.

12th Nov 2019, 4:21 am	#10
Argus25 No Longer a Member Join Date: Oct 2016 Location: Maroochydore, Queensland, Australia. Posts: 2,679	Re: Wave change switch as on-off switch PS: I forgot to mention in my post #8 if you choose to use a small pch mosfet, instead of the pnp transistor, a suitable part is the BS250: https://www.diodes.com/assets/Datasheets/BS250P.pdf Also if you use the mosfet, you could increase the two 1M resistor values much higher to 4.7M or 10M if you wanted.