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Search: Posts Made By: tommav
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10-27-2016, 03:23 PM
Replies: 21
Views: 2,571
Posted By tommav

I owned and flew a Hobie Hawk back in the 1980's....

I owned and flew a Hobie Hawk back in the 1980's. While a good performer, I found it needed a bit more piloting skills than most other gliders - not a trainer for sure.

I knew Stu Richmond when...
06-08-2016, 06:37 PM
Replies: 116
Views: 21,282
Posted By tommav

Apparently, from these articles I found in July...

Apparently, from these articles I found in July 1956 Air Trails and April 1961 MAN, health reasons were a factor for the Schmidt's short lifespan. Of course, by 1956, the competition would have...
06-08-2016, 02:59 PM
Replies: 116
Views: 21,282
Posted By tommav

$216 was the price for a complete set in in late...

$216 was the price for a complete set in in late 1953. If you click on the ad, you'll see it enlarged and readable.
Tom
06-08-2016, 01:17 PM
Replies: 116
Views: 21,282
Posted By tommav

There was one complete radio set sold in 1955...

There was one complete radio set sold in 1955 (and before) - the Schmidt 5 channel resonant reed system. Here's a link to view one. Check out the MAN Dec 1953 ad for it. Frank Schmidt's system...
06-05-2016, 02:35 PM
Replies: 4
Views: 1,570
Posted By tommav

Hi all, Here's a picture of one of my CS 465's...

Hi all,
Here's a picture of one of my CS 465's in working order (have several but none are for sale - yet). Orv, if you have trouble getting the 3-4 ma relay current, try replacing the 2N35 (NPN –...
05-21-2016, 07:15 AM
Replies: 20
Views: 2,644
Posted By tommav

Here are two Kraft 12 channel reed transmitters...

Here are two Kraft 12 channel reed transmitters to take a look at. Note the marking differences as well as the change in RF/Battery meters. I don't know the exact years for each but perhaps...
05-15-2016, 06:46 AM
Replies: 21
Views: 4,452
Posted By tommav

Hi Pete, Yes, the diode is associated with the...

Hi Pete,
Yes, the diode is associated with the Fail Safe feature. As I recall (and again it's been a few years now), my servo traveled to an extreme end (or nearly so) with the transmitter on, but...
05-13-2016, 12:45 PM
Replies: 21
Views: 4,452
Posted By tommav

Pete, I had a similar problem with one of my...

Pete,
I had a similar problem with one of my Digimite 8 servos and went through the same frustration because the problem was a component you normally wouldn't suspect. Turned out to be a silicon...
10-23-2015, 03:45 PM
Replies: 81
Views: 14,618
Posted By tommav

I started flying RC with a Kraft - ACE single...

I started flying RC with a Kraft - ACE single channel tone transmitter kit (vacuum tube with the HI-LO power switch) back in 1963. Never had a problem with it, still have it, and it still works just...
08-30-2015, 05:46 PM
Replies: 13
Views: 2,522
Posted By tommav

John, Attached are a few o'scope...

John,


Attached are a few o'scope pictures of my Digimite 8 transmitter. Note there are 16 spikes for the 8 channels. If you label each spike #1 thru #16 from left to right, the ODD numbers...
07-16-2015, 05:06 AM
Replies: 12
Views: 1,511
Posted By tommav

HighPlains is correct. There is no 5 channel...

HighPlains is correct. There is no 5 channel Citizen-Ship analog, only the 3 channel. Must have thinking about the digital version, and the 8 pin Deans power connector wiring is different for it.
...
07-11-2015, 01:43 PM
Replies: 12
Views: 1,511
Posted By tommav

Kenny, Actually, it's also for (perhaps more...

Kenny,
Actually, it's also for (perhaps more so) a section of the servo amp circuitry that wants a stable voltage. As the instructions tell you, using a common battery for the receiver and servo...
07-06-2015, 04:46 AM
Replies: 12
Views: 1,511
Posted By tommav

Kenny, If you only want to do a bench check or...

Kenny,
If you only want to do a bench check or run a demo at a club meeting, a single 4 cell pack will suffice. The battery will need to have a decent amount of charge in it so the drain by the...
07-05-2015, 07:58 PM
Replies: 9
Views: 1,178
Posted By tommav

Although it doesn't show it, the vintagercfiles...

Although it doesn't show it, the vintagercfiles website is protected against hackers and viruses by a service called SiteLock - similar to what most of the large, reputable sites use. Cost me a...
02-24-2015, 07:13 PM
Replies: 2
Views: 1,046
Posted By tommav

Joe, You can download the schematic here:...

Joe,
You can download the schematic here:...
02-07-2015, 08:21 PM
Replies: 39
Views: 5,977
Posted By tommav

Joe, Yes, the red wire is positive 9 volts and...

Joe,
Yes, the red wire is positive 9 volts and the black is negative. I only mentioned the positive ground because most radios ground the negative side.

The most popular and majority of the old...
02-07-2015, 06:29 AM
Replies: 39
Views: 5,977
Posted By tommav

Forgot about this one. Another earlier...

Forgot about this one. Another earlier Controlaire 10 channel. It also uses 18 volts.

Tom

http://www.rcuniverse.com/forum/attachment.php?attachmentid=2071118
02-07-2015, 06:14 AM
Replies: 39
Views: 5,977
Posted By tommav

The later Controlaire 10 chan reed transmitters...

The later Controlaire 10 chan reed transmitters (model MTT-10A / UTT-10A) with the silver brushed aluminum case are 9 volt. An earlier model with a gold anodized case and a blue label uses 18 volts....
10-25-2014, 04:21 AM
Replies: 11
Views: 1,466
Posted By tommav

Forgot to mention earlier that the small circuit...

Forgot to mention earlier that the small circuit with a single transistor and a few resistors is an electronic switch or amplifier of sorts. These were usually home built and used with relayless...
10-17-2014, 05:54 PM
Replies: 11
Views: 1,466
Posted By tommav

Receiver on the left by the switch is a...

Receiver on the left by the switch is a Controlaire "5".

Tom
10-04-2014, 03:57 AM
Replies: 3
Views: 1,019
Posted By tommav

The receiver operates on 3 volts. Orange is...

The receiver operates on 3 volts. Orange is positive and brown is negative. Quite a few radios from that era used brown instead of black for some reason. Black wire corrosion?? Maybe they knew...
05-03-2014, 02:17 PM
Replies: 2
Views: 561
Posted By tommav

The Citizen-Ship NPT is a GG transmitter. Mine...

The Citizen-Ship NPT is a GG transmitter. Mine has the motor buttons labeled HIGH and LOW. However, what the motors buttons do is disrupt the pulse for a continuous tone or no tone at all - Tone ON...
02-28-2014, 09:39 PM
Replies: 7
Views: 1,282
Posted By tommav

Pictures of my OS Pixie transmitter. ...

Pictures of my OS Pixie transmitter.

http://www.rcuniverse.com/forum/attachment.php?attachmentid=1973622http://www.rcuniverse.com/forum/attachment.php?attachmentid=1973623

Tom
02-28-2014, 04:13 AM
Replies: 7
Views: 1,282
Posted By tommav

I already looked at mine. That's not it. Tom

I already looked at mine. That's not it.
Tom
02-07-2014, 05:07 PM
Replies: 20
Views: 1,837
Posted By tommav

Russ, Thanks to Bob in Florida who saw this...

Russ,
Thanks to Bob in Florida who saw this thread and sent me the article, it's now on the website. Look for 1966 RCM Proportional Roundup in the Magazine Articles / misc folder. Thank you, Bob....
Showing results 1 to 25 of 39
 


 
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