• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.

hep 170 diode question

Cable Guy

Growth must be chosen again and again.
I Support WorldwideDX.com!
Dec 29, 2010
894
959
103
413-West Tennessee
Used in a Maco 300 2x5 8950s. There are diodes inside that the schematic calls hep 170. What do you replace them with? In this instance, it's used to rectify filament voltage, along with a 220uf 25v cap and 470 ohm resistor. Connected to the driver grids. Spec says they're 1000PIV, 2.5 AMP axial rectifier diode. Is that peak inverse voltage critical here or can I use a 1n5406?

Original diode shorted I think, blowing the stuffing out of the grid bias filter cap.
giphy (1).gif

Fun times.
 
Last edited:



Write your reply...
dxChat
Help Users
  • No one is chatting at the moment.


      You do not have the permission to use the chat.