User Submitted Technical Notes

• Drake B1000 Balun-Factory Drawing
• Roll Your Own VOX Relay Plug
• RV-75 Model 1544
  Adapter Manual - PDF File
• Connecting The Heathkit HG-10B to the Drake 2-NT Transmitter
• Electrolytic Filter Capacitor Rebuild
• Cleaning 4 Line Chasis
• L-4B and L-7 Power Supply Diode /Capacitor Board Replacement
• 4-Line PTO Grounding
• Repairing PTO Gears
• Why Use Fans on Drake Equipment
• Aligning Passband Filters
• Calculating FF-1 Xtal Frequency
• Neutralizing the TR-3 - The SAFE Way
• Cleaning Drake Dials
• Low Impedence Input
• Injection Cables for Drake Twins
• More TR7 Mods by G4ALG
• TR5 Schematic Correction
• Alignment of PTO Bearing
• More Details on PTO Alignment
• Adjustment of TR-4CW Delay Time
• TR6 Front End Mods
• R4-C Noise Blanker Alignment
• 6JB6 Comparisons

To receive notification when this page is updated, please enter your email address below and click "Submit"
Your Email Address

Return to Drakelist

Comments for K3HRN

Modifications - Factory Notes

Layout and Design Copyright © 2000 by K3HRN
All Rights Reserved