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Search: Posts Made By: John Schall
Showing results 1 to 13 of 13
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Forum: Golden Age, Vintage & Antique RC
06-23-2019, 04:02 PM
Replies: 21
Views: 5,624
Posted By John Schall

Bonner digimite 8 servo scematic

I had to reverse engineer a working servo to get a good scematic. Safford's scem isn't too screwed up, just a few fixes needed.First, disconnect collector of Q7 from rest of ckt and reconnect it on...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
05-21-2019, 01:41 PM
Replies: 0
Views: 819
Posted By John Schall

Bonner Digimite8 servo schm

Here is the one that workshttps://cimg4.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/1500x2000/20190521_173402_8c8e0e4a7797b9c5bc59a14ed679bea677c9b620.jpg

Bonner Digimite 8 servo schm that works.
Forum: RC Sailboats
05-19-2019, 04:49 PM
Replies: 12
Views: 7,602
Posted By John Schall

Schooner, R/C

I built a scratch built R/C schooner about 2 yrs ago. I didn't want a deep keel because the only available place to sail is rather weedy, and a deep keel would catch weeds. I looked around till I...
Forum: Golden Age, Vintage & Antique RC
05-16-2019, 11:00 AM
Replies: 21
Views: 5,624
Posted By John Schall

Bonner Digimite 8

After all the time that has passed, it doesn't look like you need further help, but just in case, I do have a working schematic for a digimite 8 servo. I have the same problem with Safford's book. I...
Forum: Golden Age, Vintage & Antique RC
12-30-2016, 11:04 AM
Replies: 4
Views: 854
Posted By John Schall

I replaced all of the electrolytic caps in both...

I replaced all of the electrolytic caps in both receivers. Electrolytic s don't grow old gracefully. It didn't help any
Forum: Golden Age, Vintage & Antique RC
12-29-2016, 04:11 PM
Replies: 4
Views: 854
Posted By John Schall

Bonner Digimite 8 receiver

I have 2 Bonner Digimite 8 receivers I can't get to work. I have a transmitter that as far as I can tell, is working. It puts out a 16 pulse signal that looks like the one on the oscilloscope, but...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
12-27-2016, 02:21 PM
Replies: 1
Views: 895
Posted By John Schall

Bonner Digimite 8 receiver

A few years ago, I posted a request for a waveform & schematic for a Bonner Digimite 8 tx schm & wave forms. The response I got was generous and helpful. I tried building one from scratch, but...
Forum: Golden Age, Vintage & Antique RC
09-04-2015, 02:25 PM
Replies: 35
Views: 6,354
Posted By John Schall

I understand you young guys not wanting to mess...

I understand you young guys not wanting to mess with stone age equipment. I am 63, so it isn't too stone age for me. Vacuum tube and superregerative, now that's stone age. I started at 13yrs old in ...
Forum: Golden Age, Vintage & Antique RC
08-30-2015, 07:07 PM
Replies: 13
Views: 2,869
Posted By John Schall

Just what I needed! Thanks very much. I don't...

Just what I needed! Thanks very much. I don't have a transmitter, I just have receiver, who knows if it works, and two servos that do work. I built a signal gen that would work the servos, and supply...
Forum: Golden Age, Vintage & Antique RC
08-29-2015, 09:14 PM
Replies: 13
Views: 2,869
Posted By John Schall

This is very helpful, thank you!

This is very helpful, thank you!
Forum: Golden Age, Vintage & Antique RC
08-28-2015, 10:42 PM
Replies: 13
Views: 2,869
Posted By John Schall

I am hoping to find someone who can post an...

I am hoping to find someone who can post an illustration of a Bonner 8 ch tx signal. I have heard the brief descriptions, but I am still a bit hazy on what the signal looks like on an oscilloscope.
Forum: Golden Age, Vintage & Antique RC
08-28-2015, 10:38 PM
Replies: 13
Views: 2,869
Posted By John Schall

No, both receivers would respond to the first 2...

No, both receivers would respond to the first 2 channels. Must be an 8 channel or more.
Forum: Golden Age, Vintage & Antique RC
08-28-2015, 10:22 PM
Replies: 35
Views: 6,354
Posted By John Schall

I own a lot of 27 mhz equipment, a lot of it is...

I own a lot of 27 mhz equipment, a lot of it is 72 mhz equip converted to 27, because it couldn't be narrow banded. Receivers are easy to convert, tx a little harder. I use them mostly in sailboats,...
Showing results 1 to 13 of 13


 
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