03-24-2014, 04:25 PM
Hi everyone. I'm please to say, finally, that the 89 has been tamed. For good, this time.
Gregb and I have been emailing the past week, and his information about the oscillator coil has been invaluable. In the meantime, I accidentally broke the wire for the winding underneath the tickler, I think the secondary, the one that had a touch of 'green disease.' Could have been fixed, but it needs to be rewound sooner or later, so I went ahead and did it. (It's 146 turns of 30awg, clockwise with the bottom on lug 3 and the top on 5) I made every effort to make the coil as close to original as possible, and it looks like it paid off. It's sensitive across the entire dial, and sounds as good as the coffee filtered speaker cone will allow.
Thanks again to everyone, especially recently to gregb, for putting up with me for so long.
Here's a few pictures. First, the new oscillator coil with both outer windings replaced:
[Image: https://lh5.googleusercontent.com/-L70RV...C_8006.JPG]
And under the chassis. I tried to keep everything as original as possible, and restuffed all the capacitor blocks. Several resistors were replaced, along with a few wires cut from a junked chassis to look appropriate. The speaker wire heatshrink looks bad, but the RadioDaze multi conductor cloth cable is nearly impossible to solder in tight spaces.
[Image: https://lh3.googleusercontent.com/-Xfhb_...C_8008.JPG]
The top. Still needs a good cleaning.
[Image: https://lh5.googleusercontent.com/-WsNP0...C_8009.JPG]
Gregb and I have been emailing the past week, and his information about the oscillator coil has been invaluable. In the meantime, I accidentally broke the wire for the winding underneath the tickler, I think the secondary, the one that had a touch of 'green disease.' Could have been fixed, but it needs to be rewound sooner or later, so I went ahead and did it. (It's 146 turns of 30awg, clockwise with the bottom on lug 3 and the top on 5) I made every effort to make the coil as close to original as possible, and it looks like it paid off. It's sensitive across the entire dial, and sounds as good as the coffee filtered speaker cone will allow.
Thanks again to everyone, especially recently to gregb, for putting up with me for so long.
Here's a few pictures. First, the new oscillator coil with both outer windings replaced:
[Image: https://lh5.googleusercontent.com/-L70RV...C_8006.JPG]
And under the chassis. I tried to keep everything as original as possible, and restuffed all the capacitor blocks. Several resistors were replaced, along with a few wires cut from a junked chassis to look appropriate. The speaker wire heatshrink looks bad, but the RadioDaze multi conductor cloth cable is nearly impossible to solder in tight spaces.
[Image: https://lh3.googleusercontent.com/-Xfhb_...C_8008.JPG]
The top. Still needs a good cleaning.
[Image: https://lh5.googleusercontent.com/-WsNP0...C_8009.JPG]