Drake Radio Modifications
Drake Home Page WB4HFN Home Page
Drake R4C Receiver Evolution Of Three Versions
Drake 4-Line Internal Digital Frequency Diaplay, by Mark Gilger / WB0IQK
New INRAD 2.8Khz Filter For the TR-7(A), by Jeff Covelli / WA8SAJ
Drake TR-7 Front Panel Transmit Power Control, by Jeff Covelli / WA8SAJ
The N4YG DDS (Digital) VFO and the Drake TR-7, by Floyd Sense / K8AC
Installing the X-Lock-3 in the Drake TR-7, by: Pete Juliano / N6QW
Drake L-4B, Table Top Amplifier Redesign, by: Ron Baker / WB4HFN
Drake TR-7 Improvements - Installing X-Lock VFO Stablizer / KI4GIN
The Drake TR-6 and TR4 Series AM Filter Up Date, by: Jeff Covelli / WA8SAJ
Pin Diode Attenuator For The Drake TR-7 Power Amplifier, by Floyd Sense / K8AC
Drake 2-B Receiver Modification to Add 160 Meters
High Speed Switching For The L-4B Amplifier, by Garry Drummond / K4OR
Electronic Bias Switching For The Drake Amplifier, by Garry Drummond / K4OR
A Homebrew AUX-7 Board for the Drake TR7 and R7, by Floyd Sense / K8AC
Homebrewing The Drake 1544 RV75/R7 Adapter, by Lee Craner / WB6SSW
The Drake TR-7 Transceiver Renewed, by Marc Van Stralen / PA1HFO
Vintage Radio Refurbishing Before Restoration, by Ron Baker / WB4HFN
TR-7 Modification For Wide Band AM Transmitting, by Jeff Covelli / WA8SAJ
Using the Drake TR-7(A) "Store" Switch To Add A Transmit Key Function, by: Ron Baker / WB4HFN
R4C Receiver power supply modification using LM7812 regulator, by: Ron Baker / WB4HFN
Test results using the 6JU6 tube as a replacement for the 6JB6, by: Ron Baker / WB4HFN
T4X Series AM Mode Modification, by: Mark Gilger / WB0IQK
R4 Series AGC Modifications, by: Mark Gilger / WB0IQK
T-4X OR TR-4 DC Fan Installation, by: Mark Gilger / WB0IQK
Adding an AM Filter to a Drake TR-4C, By: Mark Gilger / WB0IQK
Adding An AM Filter To the Drake TR-4CW, by: Jeff Covelli / WA8SAJ
New INRAD Filters For The Drake TR-4CW, by: Jeff Covelli / WA8SAJ
L4 & L7 Replacement Electrolytes - An Inexpensive Drop-In Replacement, by: Evan Rolek / K9SQG
Drake T-4 Line Circuit Modification for High Fidelity AM, by: Thomas Cathey / K1JJ
The “RAC” Digital-Dial for Your Old Boatanchor, by Jeff Covelli / WA8SAJ
Add Two More Switched Coax Connectors To the MN-2700 Tuner, by: Lee Craner / WB6SSW
Programming Modules for the AUX-7 Board, by: Gary Poland / W8PU
The Drake AC-4 And AC-3 Power Supply Upgrade, by: Jeff Covelli / WA8SAJ