|
|||||||
| Home | Forums | Rules | Articles | Store | Gallery | Blogs | Register | Donations | FAQ | Calendar | Search | Today's Posts | Mark Forums Read | Search |
  |
|
|
|
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 |
2nd October 2011, 07:00 PM
|
#1 |
|
diyAudio Member
Join Date: Jul 2011
Location: Vandalia, Ohio
|
6992 Pre Amp PSU, whats wrong here?
Heres a pic of a single tube 6992 tube pre-amp power supply that im working on. The top supply is for B+ and the bottom is for the heater.
Now in multisim i can only measure 50v no load on the B+ supply. If i remove the grounds and wire the top circuit together with wire instead of the grounds i get 100v. So is the bottom circuit somehow drawing current from the top circuit? Or is this just a multisim error? 100v no load is what im looking for on the top circuit. |
|
|
2nd October 2011, 10:20 PM
|
#2 |
|
diyAudio Member
Join Date: Jul 2011
Location: Vandalia, Ohio
|
I ended up fixing my problem. Anyways here's the new circuit. R5 simulates the tube heater and R4 simulates the plate resistance.
Should i regulate the plate voltage? Similarly to how i regulated the heater voltage? |
|
|
|
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | Search this Thread |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Anything obviously wrong with my mic pre amp ? | nigelwright7557 | Tubes / Valves | 16 | 7th July 2008 09:43 PM |
| New stock pre -amp tubes. Whats good? | RockysDad | Tubes / Valves | 7 | 3rd March 2006 09:46 PM |
| Amp Turns on and off whats wrong?? | db junkie | Class D | 2 | 26th October 2005 12:09 PM |
| Whats Wrong with My Chips! | Marvellous | Chip Amps | 5 | 29th April 2004 12:16 PM |
| New To Site? | Need Help? |
| Page generated in 0.06710 seconds (69.49% PHP - 30.51% MySQL) with 11 queries |
