Wire recorder head - UK Vintage Radio Repair and Restoration Discussion Forum

reel-to-reel-man · 29th Oct 2005, 8:23 pm

I have a bit of a project which I am a little weary of starting, I have a WW2 wire recorder with a dead head, the head has been cleaned and all the packing goo has been removed from inside of the heads casing leaving the head gap and coil easily assessable. I can remove the coil but can not unwind it as its too frail so I can not measure the length, I will probably need to make a new bobbin for a new coil, but the big problem is making the head gap, how do I go around doing that? any ideas?

scotty29 · 2nd Nov 2005, 8:22 pm

Can you not salvage the old bobbin? and measure the wire dia. then just refill the bobbin with new wire, you won`t be much out on the original resistance.

I would imagine the head armature comes in 2 halves, could you not try brass shimming to give you the spacing? What is used for the original spacing?

Harold

29th Oct 2005, 8:23 pm	#1
reel-to-reel-man Heptode Join Date: Jan 2005 Location: Paignton, Devon, UK. Posts: 805	Wire recorder head I have a bit of a project which I am a little weary of starting, I have a WW2 wire recorder with a dead head, the head has been cleaned and all the packing goo has been removed from inside of the heads casing leaving the head gap and coil easily assessable. I can remove the coil but can not unwind it as its too frail so I can not measure the length, I will probably need to make a new bobbin for a new coil, but the big problem is making the head gap, how do I go around doing that? any ideas? __________________ Vintage recorder collector www.vintagerecorders.co.uk Last edited by mikelect; 2nd Nov 2005 at 9:19 pm.

2nd Nov 2005, 8:22 pm	#2
scotty29 Retired Dormant Member Join Date: Feb 2005 Location: Leicester Posts: 64	Re: Wire recorder head Can you not salvage the old bobbin? and measure the wire dia. then just refill the bobbin with new wire, you won`t be much out on the original resistance. I would imagine the head armature comes in 2 halves, could you not try brass shimming to give you the spacing? What is used for the original spacing? Harold