Has anyone here install the Time Delay Relay board on their M-125s ? Just curious, thanks!
3 posters
Time Delay Relay on the VTA M-125
cci1492- Posts : 331
Join date : 2016-05-09
Age : 63
Location : NJ
- Post n°1
Time Delay Relay on the VTA M-125
Bob Latino- Admin
- Posts : 3259
Join date : 2008-11-26
Location : Massachusetts
cci1492 wrote:Has anyone here install the Time Delay Relay board on their M-125s ? Just curious, thanks!
This can be done and it works fine .. The only minor issue is that there is no hole in the chassis to mount the board. The TDR would go into the area between V3, V4, V5 and the quad cap. To retrofit to an existing amp, you lay the board inside the amp and mark the mount hole and then drill the mount hole from the inside of the chassis. Assemble the board, mount the board and connect the appropriate wiring.
That being said, if you use a tube rectifier (which warms up slowly) or the Weber WZ68 solid state rectifier (which has a short 3 to 5 second delay built in), you don't really need the TDR ..
Bob
cci1492- Posts : 331
Join date : 2016-05-09
Age : 63
Location : NJ
As always, thank you Bob, enjoy the rest of your weekend!
j beede- Posts : 473
Join date : 2011-02-07
Location : California
As an aside... the Mark VI has a time "advance" relay. It applies B+ to the outputs immediately but delays the delivery of B+ to the front end. This seems quite backward to me. As you might expect, you can hear noise through your speakers when the relay closes. Odd.
|
|