on eBay or UTsource (above) its all fake UT source did refund
left is the genuine a bit smaller then the TO220 IRF stamped as RD15HVF1
The original RD15xx types have a small Gate to source C ca 80pF and the source at pin 2
The fake have high gate - C this one 800-900pF and its source is pin 3 like all IRF -types
The IRF510 has the lowest gate capacity of about 400pF the best of the rest
Misubishi's RD15HVF1 is an UNIQUE VHF power FET.
With its Source at pin2 = cooling flange, the only right place of course
No other manufacturers deliver comparable divices.
It must be hard to produce. The eBay offered types are all fake cheap IRF5xx imitations in fact fraude.
The RD15xxx is relative expensive for a small FET 5-7€ from vendors that will easy take 50$ or more for shipment.
Not sold by Farnell Digi Key Reicheld and Mouser
In RF high power FET segment there is plenty of choice but it's crisis in HF VHF medium power land. The classic bipolar RF medium power transistors are no longer produced.
this is how a real RD15HVF1 is measured
left is the genuine a bit smaller then the TO220 IRF stamped as RD15HVF1
The original RD15xx types have a small Gate to source C ca 80pF and the source at pin 2
The fake have high gate - C this one 800-900pF and its source is pin 3 like all IRF -types
The IRF510 has the lowest gate capacity of about 400pF the best of the rest
Misubishi's RD15HVF1 is an UNIQUE VHF power FET.
With its Source at pin2 = cooling flange, the only right place of course
No other manufacturers deliver comparable divices.
It must be hard to produce. The eBay offered types are all fake cheap IRF5xx imitations in fact fraude.
The RD15xxx is relative expensive for a small FET 5-7€ from vendors that will easy take 50$ or more for shipment.
Not sold by Farnell Digi Key Reicheld and Mouser
In RF high power FET segment there is plenty of choice but it's crisis in HF VHF medium power land. The classic bipolar RF medium power transistors are no longer produced.
this is how a real RD15HVF1 is measured
Claims van de DAC 1296 MHz 3e dinsdag contest van 2018-07-17 17:00UTC tot 2018-07-17 21:00UTC. Uiterlijke inleverdatum van de logs is tot en met 2018-07-24!
1.3 GHz | |||||||||||||||
Sectie | Callsign | Loc | QSOs | tot km | km/QSO | Loc Bonus | Total Points | Call Best DX | Loc Best DX | Afstand | Power | Antenne | Log | Status | Maps |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
HP03
| PA0T | JO33JC | 24 | 8636 | 360 | 17 | 17136 | SM6VTZ | JO58UJ | 664 km | 100 |
1,2m dish...
| EDI |
log ontvangen...
| map |
HP03
| PA0S | JO21FW | 20 | 7765 | 388 | 17 | 16265 | OK1KZE | JN79FX | 733 km | 100 |
245 cm Dish...
| EDI |
log ontvangen...
| map |
HP03
| PA0O | JO33HG | 12 | 4921 | 410 | 12 | 10921 | OK1KZE | JN79FX | 652 km | 30 |
1m20 dish...
| EDI |
log ontvangen...
| map |
HP03
| PE1EWR | JO11SL | 17 | 4920 | 289 | 11 | 10420 | OZ3Z | JO55BJ | 616 km | 100 |
2*25 el Loopy...
| EDI |
log ontvangen...
| map |
HP03
| PA0WMX | JO21XI | 12 | 4637 | 386 | 10 | 9637 | SK7MW | JO65MJ | 650 km | 100 |
1.8m dish...
| EDI |
log ontvangen...
| map |
HP03
| PH4X | JO22QE | 2 | 1176 | 588 | 2 | 2176 | OZ3Z | JO57BJ | 654 km | 120 |
9el LFA...
| EDI |
log ontvangen...
| map |
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