Linear Amplifier Links
For Ham Radio
Dentron GLA-1000 Series Amplifier conversion and upgrade Information
Doorknob Capacitors
EL-509 Tubes when KWTUBES is out of them.
Vacuum Relays
Russian Tube Amplifiers
Name:
Bill Smith
Email:
ko4nrbs@yahoo.com
Svetlana GI7B Metal Ceramic Tube Conversion by W4EMF
*Photos by W4EMF*
Picture of EL-509 Tubes
New EL-509 RF Board from FAR Circuits
EL-509 RF Board with Ceramic Sockets
Tuned Input for four EL-509s in parallel using a cathode impedance of 56 ohms for one tube. From Ted N8GPQ
HV Board from FAR Circuits
(Can be used as a Bridge Rectifier or Voltage Doubler depending on diode connections) Good for GI7B conversion!!
Some popular Vacuum Tube Cathode Impedance values
FAR Circuits Web Site
Some GI7B Tube Conversion Suggestions
Cathode Impedance is 100 ohms(1 tube)
10 Meter Modification for GLA-1000 and GLA-1000B
GLA-1000B Tuned Input 10 meter modification
GLA-1000B Part List
GI7B Picture
N8GPQ GI7B conversion web site. Must see!!
GI7B Tube Data
Rich Measures AG6K site. Amplifier primer!!
Amplifier Basics by WB0NNI
GLA-1000 Inside Picture
GLA-1000B 10 meter mod text
Alternate EL-509 Tube Conversion Details by Frits PA0FRI
Toroid Core Information
Re-ranging Amplifier Meters
Centralab Ceramic Switch Company(Bandswitches for Amplifiers, etc.)
Radio Switch Model 86S, 88, etc. (Amplifier Bandswitches for "real" power!!)
QRO Technologies Amplifiers
Great web site!!
Reducing voltage from 120vac down to 110vac, 117vac, etc. for the old rigs not designed for 120 volt circuits.
Prep those Russian Metal Ceramic Tubes, (i.e. GI7B, GS-35B, 4CX800A, etc.) or you may get a real BANG out of it!!
Triode and Tetrode Control circuit boards. Must Look Site!!
NTC Thermistors for Inrush protection(I use their bigamp type part number SL32 10015)
HV Power Supply Board from FAR Circuits. Uses a Bridge Rectifier and snap in type electrolytic capacitors. Standard design based on common power supplies in use everyday.
Great web site for excellent linear amplifier power supply, control and tuned input circuits and parts by WD7S.
Picture of GLA-1000B Tuned Input Board with all components identified.
T/R relay connection diagram when using EL-509 Tubes
Ceramic Chassis or PCB mount Sockets for EL-509/6KG6 Tubes(Will work either way by enlarging holes in PC Board).
Chassis or PC mount Sockets for EL-509/6KG6 Tubes (Enlarge holes in PC board and don't use metal ring if using them as PC mount).
Dentron GLA-1000B Schematic
Using MFJ-259B to find correct Tank Coil tap positions & Tuned Input settings
Using PCB Relays for RF
Picture of a GLA-1000B converted to EL-509 tubes (from N8GPQ)!!
Ameritron AL-84 Picture. Would be suitable for EL-509 or GI7B Conversion
Another Ameritron AL-84 Picture
GI7BT Tube (has larger creamic than GI7B) Same electrically!!
Excellent 4" Muffin Fans for tube cooling!!
Heathkit HA-10 Warrior Suggestions for betterments!!
Heathkit HA-10 Warrior Schematic
Heath HA-10 Warrior on 160 meters!!
Fan motors for many amplifiers with internal fans found here, i.e. SB-220, Swan Mark 1, etc.!!
AL-84 Schematic from WW6J
Dentron GLA-1000 Schematic from WW6J
GLA-1000 GI7BT Amp by N8GPQ
GLA-1000 GI7BT #2 by N8GPQ
GLA-1000 GI7BT #3 by N8GPQ
Heath HA-10 Warrior Modifications by KK5DR
Heath HA-10 Warrior Relay Connections
Heath HA-10 Warrior -4.5vdc internal bias pictorial explanation by PA0FRI
Resistance Wire for Parasitic Supressors
Amplifier Basics by KK5DR(good reading)
Another resistance wire source!! (MWS)
Amplifier Fan Blades
4:1 Transformer for PA0FRI EL-509 Input
Another HV Pwr Supply Board by OH8JEP
Great Coax!!
Making Up PL-259's right the first time!!
Adding 160 meters to amps by AG6K
Ameritron RFC-3 Plate choke
Air Variable Capacitor Air Gap Voltage Ratings
Panel Meter Repair Sources
Meter Shunts by G8WRB
Non-Inductive resistors
FAR Circuits Power supply Board for EL-509
FAR Circuits Power Supply Board #2
More Vacuum Relays
ARCO Trimmer and Silver Mica Caps
ARCO Distributor
"Great selection of ARCO trimmer caps"
Article on Reed relays for RF!!
Must have L/C Meter
ALPHA Amp Repairs by N4UQ
Good relay for RF use(W7PCX Type)!!
Alternate RF relay(V23105-A5 Type)
Toroid Power Transformers
FAR Circuits HV Voltage Doubler Board(NICE)
PAGE TWO LINK HERE
PAGE THREE LINK HERE
PA0FRI Web Site Lots of QRO information!!
TRANSFORMER FOR GLA-1000 OR GLA-1000B GI-7B CONVERSION
Rare GLA-1000C
GLA-1000C #2
Morgan Electronics(Ceramic Capacitors, i.e. Doorknob types.
Precision Resistors
New "Ceramite" RF Power Capacitor Owner (Vishay bought them out)
GLA-1000C Schematic
Excellent PL-259 connectors for RG8X coax. They take the reducer adapter for the RG8X. The center pin's teflon insualtor withstands the heat of soldering very well. Really like the Gold Center Pin!!
GI-7B Tubes and Sockets here
GI7B Conversion Schematic
