Hi all. I wonder if there is anyone out there who can help me, I am trying to locate a GASFET for my Landwehr 70 cms preamp model GAAS 435ma. I have been informed that there is no equivalent as these were specially for Landwehr Electronics so it would seem that my only hope is that someone, somewhere may have a preamp that has seen better days, but still has the Gasfet intact. I have emailed Landwehr but to date no reply, Any assistance would be greatfully appreciated. 73. Howard. G0VBT.
Hi all. I wonder if there is anyone out there who can help me, I am trying to locate a GASFET for my Landwehr 70 cms preamp model GAAS 435ma. I have been informed that there is no equivalent as these were specially for Landwehr Electronics so it would seem that my only hope is that someone, somewhere may have a preamp that has seen better days, but still has the Gasfet intact. I have emailed Landwehr but to date no reply, Any assistance would be greatfully appreciated. 73. Howard. G0VBT.
Hi!
Why not just replace the dead GaAsFET with modern GaASFET and retune the circuits. I dont know what kind of FET that is but if it is single gate model then you can replace it for example with the popular MGF1302.
There are also dual-gate GaAs-FET amplifiers with S3030-fet. It is guite simple to modify the amp to use single-gate FET.
73. Jari OH3UW
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howard dawson -
jari.koivurinne＠aina.net