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35 MHz crystals

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Paul Ellis 418/03/2020 18:45:38
7 forum posts

Hello Chaps

I'm after 3 Futaba single conversion 35 MHz receiver crystals channel 61

If anyone has some I'd be delighted to hear from you

Regards

Paul

Denis Watkins18/03/2020 19:02:28
4335 forum posts
104 photos

Paul

You need to tell the lads if they are for Tx or Rx

Transmitter or Receiver

Julian Murch18/03/2020 19:08:30
62 forum posts
4 photos

These are available on Ebay

Alan Gorham_18/03/2020 19:12:12
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1259 forum posts
145 photos
Posted by Denis Watkins on 18/03/2020 19:02:28:

Paul

You need to tell the lads if they are for Tx or Rx

Transmitter or Receiver

You've obviously missed the OP's use of the word "receiver".

Paul Ellis 418/03/2020 19:14:45
7 forum posts

I didn't realise that Transmitters had that option.

Denis Watkins18/03/2020 19:15:27
4335 forum posts
104 photos

I did miss that thanks Alan

The odd number of 3 caught my eye, and scrambled my brain.

Ripmax have them too

Paul Ellis 418/03/2020 19:16:05
7 forum posts
Posted by Julian Murch on 18/03/2020 19:08:30:

These are available on Ebay

Thanks, but I've looked there and can't find CH 61

Paul

Dave Cunnington18/03/2020 20:07:55
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171 forum posts
57 photos

Talk to Charles at Flying Widget on ebay, he may have some

Steve J18/03/2020 21:05:50
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1841 forum posts
53 photos

Phoenix Model Products are showing stock of Futaba 61 SC.

**LINK**

PatMc18/03/2020 21:30:52
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4387 forum posts
527 photos
Posted by Paul Ellis 4 on 18/03/2020 19:14:45:

I didn't realise that Transmitters had that option.

They haven't.

Phil Green18/03/2020 23:45:58
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1583 forum posts
331 photos
Posted by Paul Ellis 4 on 18/03/2020 19:14:45:

I didn't realise that Transmitters had that option.

R/C transmitters generally dont, but many transmitters are single-conversion superhet
frequency-shifting by mixing isnt unique to receivers smiley

Where multiplication also multiplies the modulation, heterodyne mixing doesnt affect the modulation so is advantageous in some applications.

Paul I could give you a matched pair, I dont have 61 but I have a spare pair of single conversion 70' s ?

Phil

 

Edited By Phil Green on 18/03/2020 23:58:21

Former Member19/03/2020 04:34:20

[This posting has been removed]

Peter Miller19/03/2020 08:41:00
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10966 forum posts
1272 photos
10 articles

I have some.Both Futaba and GWS.

I can spare a couple or three..

I don't want to leave myself without any as I still have my Field Force 8 Tx

PM me your address and I can stick them in the post.

Bob Cotsford19/03/2020 10:07:15
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8393 forum posts
463 photos
Posted by Andrew Ray on 19/03/2020 04:34:20:
Posted by PatMc on 18/03/2020 21:30:52:
Posted by Paul Ellis 4 on 18/03/2020 19:14:45:

I didn't realise that Transmitters had that option.

They haven't.

Have I missed something? I still have two 35mHz transmitters that use crystals and every 35mHz transmitter I have ever had used them.

Edited By Andrew Ray on 19/03/2020 04:35:02

I believe the reference was to single and double conversion which is a dependent on the filter design in the receiver. As I remember it the tx crystal was the same regardless of whether you used single or double conversion receivers.

Peter, I still have both my FF8 and FF9s though I think I only have one module between them and no ideas where I may have put their aerials. Maybe I should polish them up and use them as wall art?

Peter Christy19/03/2020 11:01:10
1781 forum posts
Posted by Bob Cotsford on 19/03/2020 10:07:15:Peter, I still have both my FF8 and FF9s though I think I only have one module between them and no ideas where I may have put their aerials. Maybe I should polish them up and use them as wall art?

Convert them to 2.4 GHz!

wink

--

Pete

Doc Marten19/03/2020 12:28:17
543 forum posts
7 photos
Posted by Bob Cotsford on 19/03/2020 10:07:15:

Peter, I still have both my FF8 and FF9s though I think I only have one module between them and no ideas where I may have put their aerials. Maybe I should polish them up and use them as wall art?

Why not use them on 35meg?

They are both quality TX's and modules are about £10, if not a 2.7gig module is about £30.

Doc Marten19/03/2020 12:47:03
543 forum posts
7 photos

It may be best to start on a new frequency Paul.

Inwood's are selling NOS crystals for £3 each with free postage.

Bob Cotsford19/03/2020 13:17:45
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8393 forum posts
463 photos
Posted by Peter Christy on 19/03/2020 11:01:10:
Posted by Bob Cotsford on 19/03/2020 10:07:15:Peter, I still have both my FF8 and FF9s though I think I only have one module between them and no ideas where I may have put their aerials. Maybe I should polish them up and use them as wall art?

Convert them to 2.4 GHz!

wink

--

Pete

 

Pete, I did and they still have their FrSky DFT modules in place complete with aerials exiting out of the tx case. That's why I've misplaced the 35MHz aerials.

As I replaced them first with a Taranis and then a Horus they are definitely surplus to requirements. I also have a handful of DnR receivers to go with them, also redundant.

Yes, I could convert the D8Rs etc to D16 with Mike's firmware but since selling off my IC models I also have a handful of spare XnR receivers!laugh

Posted by Doc Marten on 19/03/2020 12:28:17

Why not use them on 35meg?

They are both quality TX's and modules are about £10, if not a 2.7gig module is about £30.

Doc, I gave up using mixed 35 and 2.4 after a couple of unextended aerial incidents.  The less I have to think about the longer my airframes last wink.  New batteries would probably cost more than the modules, then the cost of crystals etc.

Edited By Bob Cotsford on 19/03/2020 13:23:55

Doc Marten19/03/2020 13:47:11
543 forum posts
7 photos

Fair enough, shame not to use decent trannies though.

Former Member19/03/2020 14:31:28

[This posting has been removed]

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