<<< DB-1500 >>>

F1DQM
DB-1500 amplifier for F1DQM
DB-1500

Test 

03-10-2017

TRX = IC-738, Power 15W, Amplifier : DB-1500 (F1DQM )

With 15W by TRX,the P.E.P. OUTPUT is about 500-700 W

*** QSO with UB4WAT : SSB -14148 kHz, very poor propagation and my ant : HEX BEAM was not direct to him - was direct to NW EUROPE ***



<<<<<--->>>>>


F6DSD
DB-1500 for F6DSD
DB-1500

<<< >>>



First Test 

14-12-2017

TRX = IC-738, Power 15W, ANT : DIPOLE

Amplifier : DB-1500 (F6DSD )

With 15W by TRX,the OUTPUT is about 700...800W

     QRG = 40 m. ( 7.118 Mhz )


Second Test 

15-12-2017

TRX = IC-738, Power 25W, ANT : HEX BEAM

Amplifier : DB-1500 (F6DSD )

With 25W by TRX,the OUTPUT is about 1000W

     QRG = 20 m. ( 14.033 Mhz )


F4HSE
Will Be Started In Early January...
DB-600-CD


( January And February - 2018 )

P-output : 400-600 Watts using 2 x GU-72, clasic grounded kathode shematic
Full control all parameters & protections, nice DISPLAY using STM32 microprocesor...

CONTROL & DISPLAY


For Control & Display using complete modul designed by UR4QBP



QSO Test 

25-04-2018

TRX = IC-738, Power 10W, ANT : DIPOLE

Amplifier : DB-600-CD ( F4HSE )

With 10 W by TRX,the OUTPUT is about 300 W

     QRG = 7104.00  -  06:40 GMT

QSO with RV3KF > Ampl. "ON" - RS : 59, Ampl. "OFF" - RS : 55

Many QSO's have been made on CW/SSB mode...

Many connections have been made between the CC and the ABS.
The next video will be recorded




F6FKQ
Will Be Started In March - 2018 ...
DB-1500
Order Was Changed From DB-1500  To  DB-1500-CD

28-05-2018
Ready for the firs test
<<< >>>


First "ON" Test 

22-05-2018

Switch "ON" for the fist time...

Testing Controler and display - all working  normaly...



Second Test 

28-05-2018

Testing for the fist time...

with half of HV - QRG = 20 m. TRX = 5W

HV = 1600 V ( half of full 3200 V )

Mode = CW  :  5W / 240W  CW KEY "ON"

Mode = SSB : 5W / 430W  CW KEY "ON"


<<<<<--->>>>>



F4AWH
Will Be Started In Juny - 2018...
DB-600-CD


( June - August 2018 )

P-output : 400-600 Watts using 2 x GU-72, clasic grounded kathode shematic
Full control all parameters & protections, nice DISPLAY using STM32 microprocesor...
<<< >>>


DK2NEM
DB-450
( September-October 2018 )


DB-450 used 4 X GU-50 tubes with grounded grids

Power : 350-450 Watts