| 3cm 1W PA,DF2CK |
| 50 mhz amplifier with 3-500Z by G0MJW |
| 70 cm Power Splitter |
| 70 cm pA by DF6NA |
| 70 MHz con la GI-7B di Fabio, IK0IXI |
| 1296 Mhz Power Amplifiers by KB2AH |
| 1296 Mhz Power Amplifiers by K2AH |
| 144MHz FM 2N6084 Power Amplifier,M0UKD |
| 144 MHz high power amplifier (pdf file) |
| 144 MHz 1.5 kW GU-84b lineaarinen-OH3AWW |
144MHz 4CX250FG PP Power amplifier by JH0ISW | 144MHz GU74b Power amplifier by JH0ISW | | 144 MHz Kilowatt Amplifier with a Gu74b -by CT1DMK |
| 144MHz 1.5KW GU-84b Linear Amplifier OH3AWW |
| 144MHz and 432MHz GS35b High Power Amplifier - by DL4MEA |
| 144MHz PAs-GI-7B, GS-31B & GS-35B |
| 144/432/1296 GS35B / GS15B EME Amplifiers K7XQ |
| 432MHz Power Amplifier This GS35b,PA3EXV |
| 2 KW Power Amplifier for 144 MHz |
| 2m 2 x GU-74b Amplifier by LZ2US |
| 300w for 23 cm amplifier W6PQL |
| 600w 23cm LDMOS Amplifier,W6PQL |
| 3-500Z Amplifier,Eimac |
| 450 watt 6m 50MHz Ham Radio VHF Amplifier |
| 500 WATT PA by SM0VPO |
| 500W in 23cm con la TH338 |
| 9A3MR HF power amplifier using GI7B |
| 9Q1EK - VHF POWER AMPLIFIER 8877 W6PO DESIGN |
| Array Solutions Power Master |
| AB0CW - 809 RF Power Amplifier with triple 2A5 Exciter |
| A BIG home-made linear I0JX |
| A KW Switch Mode Regulated High Voltage Power Supply |
| A 500 Watt Output 4-400A Linear Amplifier for 600 Meters |
| Ameritron Al 120 Amplifiers,K7SFN |
| Amplificatore fm veicolare 145 MHz,IW2FND |
| AMPLIFICATORE HF CON VALVOLA 8295A / PL172,IK6JWK |
| AMPLIFICATORE HF CON 4CX3000 / 8169,IK6JWK |
| Amplificador Lineal de 160 Watt PEP Para 10 y 11 Mts ( 27 y 28 MHz ) |
| Amplificatore lineare HF con una GI7b by IZ0HQK |
| Amplifier PL519 5w input about 80 W on 28 MHz |
| Amplifiers - Links |
| Amplifier of frequency 144-146 Mhz,File archive Power |
| Amplificatore per i 144 MHz con 2 GI46B |
| Amplificateur 2mčtres avec une 4cx250 by F5SOH |
| AMPLIFICATORE PER I 50 MHZ CON GU-78B,IK6JWK |
| Amplificatore per i 144MHz con 3CX1500A7/8877 |
| Amplificatore per i 1296 MHz con 2 x 7289 water cooled |
| Amplificatore 80W a transistor per la banda dei 6 metri BY IK8MKK |
| Amplifier_1000_watt_2x QB3.5/750 by ON7WJ |
| Amplifier_500_watt_4 x PL519 by ON7WJ |
| Amplificatore da 1 Kw con una 3-500z operante in 6 metri by IK8MKK |
| The Dual 4-1000 Amplifier |
| Amplifiers SB221 |
| Amps-2 Gu74b GU84B 4CX250B by JA0BLU |
| Class A Amplifier Design |
| Collins TRC-75 - Autotune Linear Amplifier - JG1XLV |
COMPLET ARTICLE PA 2XGS35B VHF AMPLIFIER 3,6 KW
ARTICLE PA WIHT 2XGS35B VHF 3,6 KW (in french)pdf |
| Design of a 400 W Power Amplifier for 432 MHz using 8874 |
| Description of a 144 MHz high power amplifier for 2 x 4CX250B |
| DL2BWH - GS35b,die Röhre für meine neue KW-PA |
| DL5DBM 1 KW 2m PA mit 2 x 4CX250B |
| DJ4PI Amplifiers EIMAC 8877 |
| DJ3FI 70cm Amplifier |
| DK3JQ 1,5 kW Kurzwellen Endstufe |
| DL5DBM HOMEBREW-PAGE |
| DL4BBY ATV 13cm-23cm-Pa ca.80 Watt |
| DF6NA Surplus |
| DG3KBC 144MHz using the Russian Triode GS35b |
| DH1TST - Projekt Kurzwellen PA mit GU50 /GU74 / GU43 |
| EXPERT 1K-FA Amplifier |
| EASY-BUILD 144 MHz QRO |
| EA3AXV 144 MHz GS35 Amplifier |
| F5SSk - 2 fois GU81M 2KW |
| F6CHT Plus de 300 Watts a tube sans bruit refroidi par convection |
| F1FRV present Linear Amplifiers |
| F1LXL Modification d’un ampli CB pour décamétriques |
| G3YXM - The 500W PA |
| G4AXX Linear Amplifier, 4CX1000A |
| G4DCV's 144MHz amplifier with a pair of GI-7b Russian triodes |
| G8ACE Medium Power Amplifiers for 24Ghz |
| GI-7b 2m Linear Amplifier |
| G0MJW Hf 6mt 2mt 70cm 23 cm 13 cm |
| G0CWT Linier Amplifier using PL509s |
| GJ4ICD's 8877 50MHz Amplifier |
| GD0TEP The Linear Amp UK GS35b 50mhz amplifier |
| GM3WOJ GM3WOJ Amplifiers 1 x 4CX1500B |
| GS23B / 4CX1600U 1KW PA for 23cm |
| GS23B Amplifier For EME and contest operation |
| GS35B 100 WATT-2500 WATT,ITALY AMPLIFIER |
| GS35b Power Supply,PA3EXV |
| GU43B HF amplifier build by ON7AS |
| GU74B x 2 144Mhz AMP 3KW |
| GU-81M POWER TRANSMITTING PENTODE |
| GU81M, Pentoden |
| GM3WOJ 50MHz 8877 amplifier page |
| GROUNDED GRID AMPLIFIER USING THE EIMAC YC-156 |
| HF Amateur Radio Linear Amplifier with one 4CX800A tetrode tube |
| Henry 2KD-5 Grade UP Modification |
| High Voltage Supply for GS 35B Amplifier |
| Homebrew Your Own Inductors by W3JIP (PDF file) |
| Home-brew 50 MHz Power Amplifier,UN8GC |
| Homebrew Amp with Power Supply from recycled parts |
| Homebrew - AA7JC Glowbug Transmitter-Receiver by Ken Lotts |
| IK3ITX AMPLIFICATORE LINEARE PER I 50 MHz CON DUE 4CX250B |
| IK4AUY HF QRP Lin Ampl |
| I4EWH - Finale HF con la GS31b / GS35b |
| IK4AUY HF Tetrode Lin Amp |
| IK5MEN 4xel519 AMPLIFICATORE LINEARE 10-160m |
| IK8MKK Home-Made |
| IZ3GEF AUTOCOSTRUZIONE AMPLIFICATORE LINEARE HF VALVOLARE |
| I0ENF il mio lineare HF |
| JA0EIV Kuwayama Factry |
| JA0BLU Amp GU74B power 1,2KW |
| JA0EIV amplifier 4CX250B |
| JA1TNK 1.8MHz - 28MHz 2SC2100 PP 100W |
| JH1KRC home-brew two-band power amplifier |
| JH2CLV 144/1kw |
| JH5LUZ 1296MHz M57762 * 16 Power AMP 16V 100A 1.6KW Input |
| K0GKD SOLID STATE AMPLIFIER |
| K1KBW Here is the new power supply weighing in at about 25 pounds |
| K4POZ Home Brew 160-10 Meters GI7HB |
| K5AND's 8877 6m 50MHz DXpedition Amplifier |
| K5LAD's 4-1000A Amplifier |
| K9GDT 600 Watt HF Amplifier |
| KI0LE - Amplifiers & Preamps |
| LA3F 2m / 70cm PA 2500V anodespenning |
| Legal Limit The Easy Way |
| Linear Amp Power Supply 4CX250B tubes |
| Lineare HF per Field Day (PDF file) |
| Linear power amplifiers developed and built by YL2QM |
| LZ2US Amplifiers |
| Measures Amplifiers |
| Measures' Web Page AG6K |
| MYKIT COM |
| N1IBC Eimac 4CX1500B HF Power Amplifier |
| N2UO style 23cm Amp |
| NR6CA 100 WATT 50 MHZ LINEAR AMPLIFIER |
| NT8N 4-1000 amp. |
| N8GPQ Homepage |
| OK1CDJ PA 144 MHz RE025XA (4CX250B) 300W |
| OK1VPZ 70 cm Power amplifier with GI 14 b tube |
| OZ1DPR - Amplifier |
| OZ5IQ KIM- 6 meter PA-trin |
| OZ1DPR 50 MHz GS35b Power Amplifier 1.5kW |
| PA GS35b |
| PA 432 MHz GI 7B by RA3YCR |
| PC1T - 6 meter Pa with a GS35b |
| PE1KXH - 10 GHz - 1Watt PA, made from 14 GHz surplus stuff |
| PA3EXV This 144MHz power amplifier |
| PA0FRI 1.5KW HF Amplifier FRINEAR 1500 |
| PA0FRI Modification With 4 × PL/EL-519 or 2 × GI-7B0 |
| PA4EME 144 MHz GS35b amplifier |
| PHEMT (GaAs FET) Preamplifiers, Single stage 100 MHz to 1500 |
| Photos of amplifiers |
| QB5/1750 project |
QB 5/1750 HAM Amplifier 3.2 KW
QRO HF Amplifier with 2 x QB5/1750, 5500V on plates, all bands |
| QRO Homebrew KW-PA |
| QRO GU-84B TETRODE |
| RUSSIAN 50 MHz / 1.8 MHz LINEAR AMPLIFIER |
| SV3AEO HF Linear amplifier |
SV1DOQ AMPLIFIER
2 X QB4 SIMILAR 4-400, AMPLIFIER 8 X QB4 OR 4-400 tubes 5kw, HF LINEAR AMPLIFIER 6 X QB4 OR 4-400 TUBES, 4KW HF LINEAR AMPLIFIER ( 2 X GU84B ), VHF LINEAR AMPLIFIER 1Kw 2 X 4CX250 PUSH |
| S55AW 2m PA GS-35b |
| SP9RCL AMPLIFIER 2x GU 74B |
| SP5GJN 600W HF Power Amplifiers 2 x QB3/300 |
| SM2CEW The G2DAF HF amplifier |
| SM5HUA Vhf linear |
| SM2CEW EME amplifier for 144 MHz |
| SM7EQL 2x813 och den klassiska 1200v |
| Sommarsändare med 6AG7 och 807 |
| The new developed 1kW linear amplfier ALPIN100 |
| UA1OJ 144 MGts PA on GU-7B |
| UT7CT The GI-7B (GI-70B) microwave triode |
| Vacuum Tube Amplifiers by W8JI |
VHF amplifier 2X GS35B TRIODE
look my amplifier VHF with 2XGS35B max power +3 KW a complete article under construction in www.f8kth.fr |
| VE5RI 4CX3000A regulator boards and controls that are used with "Cyclops" |
| VK3ZL Grounded Grid Amplifier Using a Pair of GI-7B Triodes |
| VK3ZL GS-35B Amplifier For 160 Meters |
| VE6FI Amateur Radio - 8877 Linear Amplifier |
| VE6FI Amateur Radio 4-1000A Linear Amplifier |
VK6HV - 4 x 813's Desk Top Linear Amplifier
813's Desktop Linear Amplifier wired in the G2DAF configuration. |
| Watercooled 6 x 2C39ba PA |
| WB8WJU GS-35b HF Amplifiers |
| W2DTC's HOMEBREW RF AMPLIFIER |
| W4TI- Ameritron AL-80BQ (with QSK-5PC installed) |
| W4EMF 2008 MLA2500 retrofit to GI-7B |
| W4EMF amp with a pair of Russian GI-7B tubes |
| W6LLA AMPLIFIER CONSTRUCTION PUSH PULL, GROUNDED GRID AMPLIFIERS |
| W6JFR 3CX1500A7 Amplifier |
| WD7S DUAL 8877 AUTO-TUNE HF AMPLIFIER |
| W7IUV 2 x 3-500Z 80-10 meters |
| W7IUV -2 x 4-400A Amplifier Deck |
| W7IUV -4 x 813's Amplifier Deck |
| W7RF RADIODAN - Henry 3K Classic X MKII |
| W8ERJ My 813 Linear Amplifier Project |
| W8ZR Six-Meter Linear Amplifier |
| WU7IUV -YC156 Conversion |
| WU7IUV - 3 x 4-400A project |
| WV7U 3cpx800 Aplifier |
Yaesu FL2100B | | YC-156 Amp by K8BOW |
| YL1050 PA for 432 MHz |
| YU1AW,VHF/UHF Power Amplifiers |
Production | | Icom Amplifier Interface |
| DL3JJ Aplifier a tube GU84B |
| Danish Power Amplifier for Hams |
| Illinois Capacitor, Inc |
| Radiodan W7RF |
| Hotek Technologies |
| QRO HF-2500DX |
RF Power Amplifier Microwave. Solid State Amp. Wireless | RF amplifiers, VHF/UHF AMPLIFIERS 50-1000 MHz | Leitner per radioamatori | K1FO Lunar-Link Amplifiers | HA8UG Az én HF Linear Amplifier készülékem | The Home Page of Command Technologies | Bear Electronics | K8CU GS35B 50 MHZ Amplifier | HA1YA Linear Amplifier | Enryradio RF Power Amplifiers Communications equipment | | ITALY AMPLIFIER modifiche eseguite sugli amplificatori |
| Alpha Radio Products |
| Wavemach - Transmitters and amplifiers, power supplies |
RF parts | Tube | | 70cm (432MHz) Load and Tune parts |
| Antique Electronic Supply |
| ACOM - Automatic HF amplifier |
| BEIJING ELJVT.CO.LTD |
| Canadaxray.com - Vacuum Tubes & Electron Tubes for Industry |
| Eimac Power Grid Tube Product Catalog |
| Electron Tube Data sheets |
| GS-35B GS35B Russian Triode |
GM3SEK's Amateur Radio Technical Notebook | | Innes Corporationt |
| MAX-GAIN SYSTEMS, INC. - Fixed Vacuum Capacitors |
| MuchStuff Amateur Radio Vacuum Tubes |
| Photogalerie of Tubes DF6NA |
Penta Laboratories - Electron Tubes | QRO Tubes & Parts
Svetlana tubes and Russian parts for RF Power Amplifier builders! |
| Sovtek Tubes |
| Russian Tubes LLC |
| The Tube Thing |
| Tube sockets |
| Tubes Direct - The Tube Superstore |
| Transmitting Tubes |
| Universal HF Amplifier for Triodes or Tetrodes TB3/750 |
| Vacuum Tubes by Thomas J. Bruckner |
| Wide Importer & IT Service nakatoyo.com |
| Zeitmann tubes - Tungsram vacuum tubes Military Surplus |
Capacitator |
| Capacitors Ceramic Doorknob |
| Components for amplifiers YL2QM |
