[Lowfer] Temp control...

[Dale Parfitt]

Dale Rice wrote:

> In some of the commercial XTAL ovens I have looked at they use transistors
> to do the heating. I suppose the advantages are that they are cheaper than
> resistors, easier to mount, and their gain can be used as part of that
> needed in the circuit.
> A 2N3055 would be good and cheap or even a 7805 regulator IC with the output
> grounded. The regulator IC is made to withstand abuse and get hot.
>
> Dale Rice
> KC7YKU
>

Used to use the transistor idea on 10 GHz Gunnplexers.
Worked quite well.

Dale W4OP