Tech TE-15 dipper coil info - UK Vintage Radio Repair and Restoration Discussion Forum

Peter G3YJE · 25th Jul 2017, 9:46 pm

I picked up one of these from a silent key sale but it only had four coils.
The circuit diagram only shows the coil as a blank box with 4 pins. I am
loath to cut open one of the remaining ones to fine out the circuit, but
would like to know the makeup of the coil so that I can make new ones.

Anyone know what is inside?

Peter G3YJE

karesz* · 25th Jul 2017, 10:32 pm

Peter,
maybe you have to searc for "Tradiper" TE-15_or Monarch GDM-1, but their egsist as some another trade/version too...
Karl

Terry_VK5TM · 26th Jul 2017, 6:27 am

I'm still trying to find mine Peter, it's gone into hiding.

Terry

Terry_VK5TM · 26th Jul 2017, 7:33 am

Peter, i did a bit of digging on the'net and found this (about 2/3 rds down page)
http://www.radioamator.ro/forum/viewtopic.php?t=2360

It is a homebrew job but it uses the TE15 circuit and has the coil details (you will need google translate to read the posts).

Will keep digging for mine to confirm the details.

Terry

Peter G3YJE · 26th Jul 2017, 9:35 am

Thanks Terry, I will get a meter out later and see if I can resolve the values.
I'm a bit puzzled by the "150 ÷ 450 ohms" comment on the coil info!
Peter G3YJE

Herald1360 · 26th Jul 2017, 12:13 pm

Maybe they used ÷ instead of / which might make more sense in the context.

Terry_VK5TM · 26th Jul 2017, 12:53 pm

Possibly 150 to 470 depending on which coil it is.

Have seen other circuits where a different value resistor has to be fitted depending on frequency range of coil.

Terry

25th Jul 2017, 9:46 pm	#1
Peter G3YJE Triode Join Date: Aug 2015 Location: Gloucester, Glos. UK. Posts: 23	Tech TE-15 dipper coil info I picked up one of these from a silent key sale but it only had four coils. The circuit diagram only shows the coil as a blank box with 4 pins. I am loath to cut open one of the remaining ones to fine out the circuit, but would like to know the makeup of the coil so that I can make new ones. Anyone know what is inside? Peter G3YJE

25th Jul 2017, 10:32 pm	#2
karesz* Heptode Join Date: Jun 2010 Location: Zurich, Switzerland Posts: 538	Re: Tech TE-15 dipper coil info Peter, maybe you have to searc for "Tradiper" TE-15_or Monarch GDM-1, but their egsist as some another trade/version too... Karl Last edited by karesz; 25th Jul 2017 at 10:53 pm.*

26th Jul 2017, 6:27 am	#3
Terry_VK5TM Nonode Join Date: Oct 2010 Location: Tintinara, South Australia, Australia Posts: 2,339	Re: Tech TE-15 dipper coil info I'm still trying to find mine Peter, it's gone into hiding. Terry

26th Jul 2017, 7:33 am	#4
Terry_VK5TM Nonode Join Date: Oct 2010 Location: Tintinara, South Australia, Australia Posts: 2,339	Re: Tech TE-15 dipper coil info Peter, i did a bit of digging on the'net and found this (about 2/3 rds down page) http://www.radioamator.ro/forum/viewtopic.php?t=2360 It is a homebrew job but it uses the TE15 circuit and has the coil details (you will need google translate to read the posts). Will keep digging for mine to confirm the details. Terry

26th Jul 2017, 9:35 am	#5
Peter G3YJE Triode Join Date: Aug 2015 Location: Gloucester, Glos. UK. Posts: 23	Re: Tech TE-15 dipper coil info Thanks Terry, I will get a meter out later and see if I can resolve the values. I'm a bit puzzled by the "150 ÷ 450 ohms" comment on the coil info! Peter G3YJE

26th Jul 2017, 12:13 pm	#6
Herald1360 Dekatron Join Date: Feb 2007 Location: Leominster, Herefordshire, UK. Posts: 16,535	Re: Tech TE-15 dipper coil info Maybe they used ÷ instead of / which might make more sense in the context. __________________ ....__________ ....\|____\|\|__\|__\_____ .=.\| _---\__\|__\|_---_\|. .........O..Chris....O

26th Jul 2017, 12:53 pm	#7
Terry_VK5TM Nonode Join Date: Oct 2010 Location: Tintinara, South Australia, Australia Posts: 2,339	Re: Tech TE-15 dipper coil info Possibly 150 to 470 depending on which coil it is. Have seen other circuits where a different value resistor has to be fitted depending on frequency range of coil. Terry