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How to assemble an Collins filter + Board for FT-817/857 and save $$$!!!

 
Edited

You can buy a genuine Collins 500hz CW filter for about $103 (from Japan, UK etc.) and solder it yourself to an FT-817 compatible board made by Artur, SP6AB. He sells them as a service to fellow hams for $16. Contact Artur to confirm pricing and availability:?sp6ab@....?
73,
Howard, W6ZZ

Here's one possibility to buy a genuine Collins filter (w/o board):

AOR MF-500 500Hz MF Series Collins Mechanical Filter 526-8693-010 radio

$111.67$67.00

12?IN STOCK
 

On Sun, Jun 16, 2024 at 12:45 AM, W6ZZ wrote:
You can buy a genuine Collins 500hz CW filter for about $103 (from Japan, UK etc.) and solder it yourself to an FT-817 compatible board made by Artur, SP6AB. He sells them as a service to fellow hams for $16. Contact Artur to confirm pricing and availability:?sp6ab@....?
73,
Howard, W6ZZ

Here's one possibility to buy a genuine Collins filter (w/o board):

AOR MF-500 500Hz MF Series Collins Mechanical Filter 526-8693-010 radio

$111.67$67.00

12?IN STOCK

I looked on Google Street View and (with apologies to the seller) that really does look a little suspect to me, especially given the price and quantity left in stock. Due dilligence may reward either way.
?
--
Steve, G4VRR.
 
Edited

Yes, you will need to search and evaluate the vendors for the "Collins filter w/o board." I got mine on eBay from Japan for $103 but he no longer has availability. I can't vouch for this UK dealer and his price does appear to be "too good to be true." I provide the correct part number for the "Collins 500hz CW filter w/o board" so you can search for it. Good Luck!
73,
Howard, W6ZZ
Kurt Savegnago
 

Am glad now when I bought my FT-817 years ago. I had it sent to an outfit the name of which slips my mind but is no longer in existence and they put a CW board in and
a narrow band filter for SSB and retuned the rig.? That service almost cost as much at the radio. The SSB filter really makes a big difference.? I can switch it in or out as needed.? I sometimes run it?
with a 100 watt amp and an external antenna.? RM Italy was a place where I bought an amp from that's likely not there anymore and I bought a?
100 watt amp from an old fellow at the time who is probably dead now who made up kits but had an assembled working amp I could buy.? Didn't have any trouble
running the FT-817 through an amp and appropriate antenna and tuner.? Got an FT-857 later and dropped a narrow band board in when I didn't want to diddle with
amp wiring in the 817.

Kurt KC9LDH

On Saturday, June 15, 2024 at 06:51:51 PM CDT, W6ZZ via groups.io <w6zz@...> wrote:


[Edited Message Follows]

You can buy a genuine Collins 500hz CW filter for about $103 (from various Japanese dealers) and solder it yourself to an FT-817 compatible board made by Artur, SP6AB. He sells them as a service to fellow hams for $16.?
Contact Artur to confirm pricing and availability:?sp6ab@....?
I did this and I'm a Happy Camper!
73,
Howard, W6ZZ

Here's one possibility to buy a genuine Collins filter (w/o board):

US $102.98
Sold on eBay by:
 

The item you posted is no longer available.
Clyde KC7BJE?
 

I posted two (2) vendors. Page down and look for the vendor in UK. The Collins 500hz filter (w/o board) is showing up overseas but you must search and evaluate reliability of the vendor. I give you the correct search term. The rest is up to you.? --73, Howard, W6ZZ

AOR MF-500 500Hz MF Series Collins Mechanical Filter 526-8693-010
 

What other filters exist for the 817/818 rigs?

Looking at INRAD's old page I see a couple of options, though they are long gone.



CW: 300 and 500Hz
SSB: 2000, 2300, 2500, 2900KHz

I thought there was a narrower CW filter out there somewhere, but maybe I'm thinking of a different rig.? I thought there was a 100Hz option.

Greg, K3RW/KH7
 

I dont think you would like a 100 Hz filter.? Makes tuning to find stations difficult.? I use a 300 Hz Collins filter in my FT817 and also other rigs with IF DSP with adjustable filters for CW.? I often use a 1.4kHz filter for tuning.

73, ron, n9ee/r

Ron Wright, N9EE/R
Hernando Co ARES EC
Spring Hill, Florida also n9ee55@...


On Wednesday, July 10, 2024 at 06:27:37 PM EDT, Greg, K3RW <gregory.c.winters@...> wrote:


What other filters exist for the 817/818 rigs?

Looking at INRAD's old page I see a couple of options, though they are long gone.



CW: 300 and 500Hz
SSB: 2000, 2300, 2500, 2900KHz

I thought there was a narrower CW filter out there somewhere, but maybe I'm thinking of a different rig.? I thought there was a 100Hz option.

Greg, K3RW/KH7
 

I have an FT857D that has a DSP filter. It will go down to 60 Hz width. I will tune in a CW signal at a much wider bandwidth, then narrow it down to 120 or 60 Hz if need be. Very useful. I wish the FT817ND had it.

Zack W9SZ

On Thu, Jul 11, 2024 at 3:41?PM Ron Wright via <lt_wright_flg=[email protected]> wrote:
I dont think you would like a 100 Hz filter.? Makes tuning to find stations difficult.? I use a 300 Hz Collins filter in my FT817 and also other rigs with IF DSP with adjustable filters for CW.? I often use a 1.4kHz filter for tuning.

73, ron, n9ee/r

Ron Wright, N9EE/R
Hernando Co ARES EC
Spring Hill, Florida also n9ee55@...


On Wednesday, July 10, 2024 at 06:27:37 PM EDT, Greg, K3RW <gregory.c.winters@...> wrote:


What other filters exist for the 817/818 rigs?

Looking at INRAD's old page I see a couple of options, though they are long gone.



CW: 300 and 500Hz
SSB: 2000, 2300, 2500, 2900KHz

I thought there was a narrower CW filter out there somewhere, but maybe I'm thinking of a different rig.? I thought there was a 100Hz option.

Greg, K3RW/KH7



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