[ARC5] SG Keying of ARC-5 Tx

Sat Nov 19 19:27:02 EST 2016

On 19 Nov 2016 at 22:29, Tom Bridgers wrote:

> Here's a link to the GE Ham Tips article from the 1950's about improved SG keying:
> 
> https://goo.gl/photos/MK1iUqzAjmpfweTN9

That is a good circuit, but keying should be done by a relay, not a key. Voltage on the key 
can be has high as the screen voltage, which for a pair of 1625s, can be almost 300 VDC.

Keying relays are cheap. One could use a MOSFET in fact.

Ken W7EKB

---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus