282
edits
Tunnel Diode Replacement and Modification: Difference between revisions
Tunnel Diode Replacement and Modification (view source)
Revision as of 10:07, 8 February 2022
, 8 February 2022schematic is in the manual; two S/N ranges
No edit summary |
Vintage dave (talk | contribs) (schematic is in the manual; two S/N ranges) |
||
| Line 10: | Line 10: | ||
Our thanks to Morris Odell, VK3DOC, who devised these modifications and has allowed us to share them with you here. | Our thanks to Morris Odell, VK3DOC, who devised these modifications and has allowed us to share them with you here. | ||
Refer to the S/N 100-6739 547 A Sweep Trigger circuit diagram in the manual. | |||
Step by Step Modification Instructions: | Step by Step Modification Instructions: | ||
| Line 20: | Line 20: | ||
Morris points out that the B Sweep Trigger circuit is identical to the A Sweep Trigger. This modification should therefore be equally applicable for that circuit. | Morris points out that the B Sweep Trigger circuit is identical to the A Sweep Trigger. This modification should therefore be equally applicable for that circuit. | ||
Dave Wise believes that for S/N 6740-up, you would modify R236, R233, and R246. The goal is same node voltages with <4.7mA through the diode instead of <10mA. | |||
[[Category:Repair issues]] | [[Category:Repair issues]] | ||