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Has anyone used the Kenwood KPS-15 to power the FT-847? Chew 9V1YP

That's how I found mine.? While researching filter options for the FT847 I found several references saying the filters in the FT1000MP will fit.? I then found a guy who was parting out filters from

It looks like INRAD still has some of the 500hz crystal filters for the FT847 available: https://www.inrad.net/product.php?productid=159&cat=18&page=1 The Yaesu filter is the same as used in the

And, if anybody here in NZ needs this switch, please note that Element14/Farnell has them 'until current stock is exhausted'. Their order code is 1435767. At the moment they are on 'back

Cw filter -- Dirk Esterline PHS Spanish

Anyone have a cell filter for the 847? -- Dirk Esterline PHS Spanish

Well guys, we’ve cracked it, with all your help and suggestions. The culprit was indeed the filter electrolytic C2061 connected to VCC on Mo2002 VCO. It had gone short circuit. I reckon that had

WD8AXA

This is the continuation of fixing the FT847 VHF second channel fault that we'd tracked down to a faulty switching transistor pair, Q2016, that provides the supply rail for the VCO, MO2002. John

Thanks Lawrence, yes I totally agree, I was able to get a little way in solving the problem, BUT, I needed the help of others to really understand what was going on. Also I have to say that using the

I would like to add that I truly enjoyed this conversation. I have learned quite a bit about our rig. It is also reassuring that there are such knowledgeable and helpful people out there. Thank

That’s a good point Nils, no I haven’t lifted the board but I have been checking voltages at both ends of the relevant tracks. I’m going to call Yaesu today to see if they have that part number,

Great! You are getting somewhere! BUT, have you lifted the PLL board? Check for any factory mods ie. cut traces, added components and lines. The soldering skills of the guys doing the mods isn't

Getting VERY close now. Today we double checked the voltage on TP2002 for the VHF VCOs and as before it seemed fine for the Low VHF band (up to 139.99MHz) but clung to 7v for the high VHF band

HI For the well-known problem of the ON/OFF button that came out immediately after a few years of use, I did the same thing with the Swiss Farnell about 15 years ago with my FT847, always perfectly

Hi folks, if any of you in the UK need a replacement power switch these are available from cpc.co uk with the order number of - SW04793, these should also be available from Farnell sites in other

Nils, Charles, thanks again for your replies, we’ve stopped work for today and will probably not start up again until next week, we only have 2 good eyes and 1.5 steady hands between us so progress

Paul, NB I'm not an expert in any way so take my aswers considering that! You have checked the backup battery? You did a reset in the service menu? The voltage at TP2002 is not behaving normal but

When it jumps to 7 the VCO is un locked I think 2 v is locked OK Compare with a working band Wd8axa Sent: Thursday, March 18, 2021 11:27 AM To: [email protected] Subject: Re: [YaesuFT847] 2mtr

Nils, we did some checking of the voltage to the VCO on the PLL board as you suggest by looking at TP2002. On VHF band 108-139.99 the voltage varies from 2 to 6 volts measured (roughly) on my digital