Specs for the High Sensitive FilterTronTM Pickup

[guitarcam123]

The bridge version on Malcolm Young's 1963 Gretsch Jet Firebird.

Does anyone know the DC Resistance, output, type of wire, magnet, bobbins, string spacing etc etc..
Also with the bobbins, what are the measurements for them?

I know theres a new version of the High Sensitive FilterTronTM Pickup, 2005 i think is the year. Is that the same as the one in Malcolm's guitar?


Thanks,
Cam

[soundmasterg]

If his '63 Gretsch is original, then the most accurate copy of that pickup will be the TVJones Classic Filtertron. I'd just buy one from him as they sound great and tooling up to make the covers, baseplates, etc would be cost prohibitive, especially when TVJones has the market locked up with his excellent offerings.

greg

[guitarcam123]

ok, cool

does anyone have a diagram of a Filtertron pickup - like whay bobbins, magnets etc - the way there build/ put together, what are the parts involved

[David Schwab]

This might help. From the patent. The slots in the cover are important. A regular closed bucker cover will change the tone. The slots cut down the amount of eddy currents to keep the tone brighter.

[Peter Naglitsch]

And the 1/4" thick magnets plays their part too...

We really should gather all the construction data we have in the threads here in a single thread and pin that for easy access/reference.

[bill raymond]

Filtertron bobbin dimensions

I have some NOS filtertron bobbins from the higher DCR filtertrons made after 1979 and before FMC took over production: The flanges measure 11.5mm wide, 63.0mm long. Overall height of the bobbin is 9.0mm, 6.5mm space between the flanges. I am unwilling to sacrifice to measure the coil dimensions, but, fortunately, the plastic is translucent and I can make a pretty good measurement: the core is 5.0mm wide, 53.0mm wide.

These measurements were taken using an inexpensive steel rule, and I "eyeballed" to the 0.5mm.

I also have a chart showing the winding wire gauges and number of turns for Gretsch pickups that I downloaded a number of years ago from a Brazilian music store site, but I don't think that chart is still available on any website. It's in spreadsheet format and perhaps I can find somewhere to post it and provide a link to it if folks really want it.

[David King]

Bill, please do your best to post it to the sister pickupedia.info website.

[guitarcam123]

I have some NOS filtertron bobbins from the higher DCR filtertrons made after 1979 and before FMC took over production: The flanges measure 11.5mm wide, 63.0mm long. Overall height of the bobbin is 9.0mm, 6.5mm space between the flanges. I am unwilling to sacrifice to measure the coil dimensions, but, fortunately, the plastic is translucent and I can make a pretty good measurement: the core is 5.0mm wide, 53.0mm wide.

These measurements were taken using an inexpensive steel rule, and I "eyeballed" to the 0.5mm.

I also have a chart showing the winding wire gauges and number of turns for Gretsch pickups that I downloaded a number of years ago from a Brazilian music store site, but I don't think that chart is still available on any website. It's in spreadsheet format and perhaps I can find somewhere to post it and provide a link to it if folks really want it.

Thankyou very much. And yes that link is greatly appreciated

[bill raymond]

Gretsch Pickup info chart

OK, you should be able to find it here: http://www.scribd.com/share/upload/1...vu9phtq146bwk9.

I'll check this link after I post it to be sure it takes you where you want to go.

[bill raymond]

post to pickupedia

David, I have this file in .xls format, which is not an acceptable format to upload to pickupedia. I'll work on converting it to a text or graphics file and post it when I can. Meanwhile, the link I gave in my post above seems to work just fine, so the info is available to anyone who wants it.

[salvarsan]

HTML version here

I just genned up a quick and dirty HTML version of the chart
so someone else can put it up on Pickupedia.info

http://www.salvarsan.org/pickups/GretschPickupInfo.html

-drh