|
|
|||||||
| Home | Forums | Rules | Articles | Store | Gallery | Blogs | Register | Donations | FAQ | Calendar | Search | Today's Posts | Mark Forums Read | Search |
| Solid State Talk all about solid state amplification. |
|
Please consider donating to help us continue to serve you.
Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving |
|
|
|
Thread Tools | Search this Thread |
|
|
#1 |
|
diyAudio Member
Join Date: Dec 2003
Location: Columbia, SC
|
Having a bit of trouble biasing my leach amp. I tested the power supply without it being connected to the amp and it is generating +57.8V on the positive rail and -57.8V on the negative rail. I then connected it to the amp using an 82Ohm 1/4w resistor in place of F2 and F4, they did not smoke and the voltage drop across the resistor was about 1.7V. I then connected the amp with actual fuses in F2 and F4, again, no smoking and everything appeared normal. Then I connected my amp meter across F2 with the fuse removed and with F4 still in place (as shown below). The amp meter doesn't show any amperage across the fuse, even when I move P1 around a little. I'm scared to push P1 too high because it might blow the output transistors, I think I must be doing something wrong if it shows no amperage what so ever, any advice would be much appreciated. Also, for those who read my other recent leach amp post, C25 and R50 and in place.
|
|
|
|
|
#2 |
|
diyAudio Member
Join Date: Dec 2003
Location: Columbia, SC
|
Found the problem if anyone was interested. The fuse in my amp meter had blown .... =)
|
|
|
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | Search this Thread |
|
|
|
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| High Current Leach/leach super amp | bowdown | Solid State | 41 | 2nd March 2011 02:15 PM |
| low-biasing or high biasing in Class-AB amps | Workhorse | Solid State | 124 | 18th October 2005 04:45 AM |
| Leach Superamp vs Leach 4.5 | Samuel Jayaraj | Solid State | 4 | 26th October 2002 09:20 AM |
| Leach amp vs super Leach amp | supernet | Solid State | 0 | 21st February 2002 10:16 PM |
| New To Site? | Need Help? |
| Page generated in 0.06657 seconds (69.18% PHP - 30.82% MySQL) with 10 queries |