Message	Date	From	Subject
14408	2017-10-23 10:02:48	bwbangerter	Surplus KVG crystal filters
A circuit board with three KVG crystal filters has been available from several vendors on ebay at an attractive price (~$30 US) for some time. I have obtained the data sheets for these filters from KVG and have uploaded them to a folder “KVG” in the files area. Sadly, the ssb filters S43 and S44 each have a 3 dB bandwidth of 3.1 KHz (+/- 1.55 KHz), making them less than ideal for ham radio ssb use. I have also posted two schematics of the board, one from a German source with few component values, and a nice one from ZL4SAE/GW4SAE with component values. Ben - K0IKR
14410	2017-10-24 14:40:45	rcbuckiii	Re: Surplus KVG crystal filters
Ben, Thank you for posting the information. I ordered one of the boards on Oct 1. It hasn't arrived yet but I expect it in the next week or so. Ray AB7HE

A circuit board with three KVG crystal filters has been available from several vendors on ebay at an attractive price (~$30 US) for some time. I have obtained the data sheets for these filters from KVG and have uploaded them to a folder “KVG” in the files area. Sadly, the ssb filters S43 and S44 each have a 3 dB bandwidth of 3.1 KHz (+/- 1.55 KHz), making them less than ideal for ham radio ssb use. I have also posted two schematics of the board, one from a German source with few component values, and a nice one from ZL4SAE/GW4SAE with component values.

Ben - K0IKR