Ok, so I have an old “powerplate” 1x4 that I am tinkering with. The board is an absolute hack job so I will probably end up rebuilding it using the existing heat sink, case and transistors.
So far I have:
1. Disabled the driver and adjusted the input tuning.
2. Added bias per the above “quick and dirty” thread. This still needs to be dialed in, and I may decide to go with a regulated system in the long run, once I wrap my brain around it.
One thing I didn’t consider but am now realizing, is that this amp is seems to need a much higher drive level than I expected. I realize now how between the input padding and the very different setup why they’re able to get away with 1-2879 driving 4-2879s.
Anyone have any speculation as to what would be a good SSB drive level for an amp of this design (when properly biased)?
I don’t like to run my stuff hard...I cruise my DX500 at 12w in, but this thing is virtually asleep at that level.
Anyway, was hoping to run it with my Uniden 980, but now I’m thinking it’s going to take a dual final radio.
So far I have:
1. Disabled the driver and adjusted the input tuning.
2. Added bias per the above “quick and dirty” thread. This still needs to be dialed in, and I may decide to go with a regulated system in the long run, once I wrap my brain around it.
One thing I didn’t consider but am now realizing, is that this amp is seems to need a much higher drive level than I expected. I realize now how between the input padding and the very different setup why they’re able to get away with 1-2879 driving 4-2879s.
Anyone have any speculation as to what would be a good SSB drive level for an amp of this design (when properly biased)?
I don’t like to run my stuff hard...I cruise my DX500 at 12w in, but this thing is virtually asleep at that level.
Anyway, was hoping to run it with my Uniden 980, but now I’m thinking it’s going to take a dual final radio.