| ??? 08/29/12 23:00 Modified: 08/29/12 23:03 Read: times Msg Score: +1 +1 Informative |
#188194 - Perhaps Current Limiting Responding to: ???'s previous message |
The manual I was able to locate is for the MKII located:
http://www.thevalvepage.com/servdata/...arnell.htm click on the e350.pdf this is a direct link to the download page, but may not allow you to enter a security code. http://www.thevalvepage.com/download/...ir=farnell The schematic at the bottom of that manual happens to have check points for voltages ( hand written ). There seems to be 4 fuses. The most obvious case is to check the fuses and make sure they are functional. If they are not, why did they open? Power supplies drop in voltage purely from current limiting sometimes, and there could be nothing wrong just configured incorrectly or drawing too much current into a load. If need be, start checking the voltages from the beginning stages up to the end stages. |
| Topic | Author | Date |
| Repairing old kit, any advice? | 01/01/70 00:00 | |
| "Suddenly" ? | 01/01/70 00:00 | |
| Perhaps Current Limiting | 01/01/70 00:00 | |
| More info | 01/01/70 00:00 | |
| for those of us that ... | 01/01/70 00:00 | |
| Voltage-controlled | 01/01/70 00:00 | |
| pentodes? Tubes? (Valves?) | 01/01/70 00:00 | |
| Tubes as in Mullard EL34s | 01/01/70 00:00 | |
| One last bit of advice | 01/01/70 00:00 | |
| Old electrolytics | 01/01/70 00:00 | |
| well, in lieu of a scope .... | 01/01/70 00:00 | |
| Last | 01/01/70 00:00 | |
| The problem isn't with the "old gear" ... | 01/01/70 00:00 | |
| Good hunch, then | 01/01/70 00:00 | |
| Update, not the electrolytic.. | 01/01/70 00:00 | |
| 01/01/70 00:00 | ||
| ebay | 01/01/70 00:00 | |
| Or just the Mullard | 01/01/70 00:00 | |
| Anyone got an EL34? | 01/01/70 00:00 | |
Here you go... | 01/01/70 00:00 |