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I have quite successfully?used these encoders from China and by carefully?dismantling have been able to remove a tiny ball bearing to?end?up with a smoothly turning?frequency controller for my SDR?(no detents).?

Must admit though not as free running as this?optical encoder :-?

www.ebay.co.uk

Rotary Encoder 400P/R 6mm Incremental Optical Shaft Working Measurement 5-24V in Business, Office & Industrial, Automation, Motors & Drives, Sensors | eBay

This encoder needed a voltage source greater than?5V ?so I added?a series 1.5V AA cell, the output pulses had to be divided down in the sketch?to give an acceptable tuning rate and?the end?result is?a tuning control that when fitted with a weighted knob?can be spun freely like a SW receiver of old.

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From: SoftwareControlledHamRadio@... on behalf of Jack Purdum jjpurdum@... [SoftwareControlledHamRadio]
Sent: 18 August 2016 19:55
To: SoftwareControlledHamRadio@...
Subject: Re: [SoftwareControlledHamRadio] KY-040 encoder threaded for mounting?

Here's 10 encoders for less than $5 including shipping (search: 121993737161):

Of course, these are from China, so you'd have to wait a while.

Jack, W8TEE

From: "MICHAEL BOHN bohn48@... [SoftwareControlledHamRadio]"
To: "SoftwareControlledHamRadio@..."
Sent: Thursday, August 18, 2016 2:40 PM
Subject: Re: [SoftwareControlledHamRadio] KY-040 encoder threaded for mounting? [2 Attachments]

[ from MICHAEL BOHN included below]

I also needed an encoder with threads, and was concerned by several comments from buyers?who were disappointed to find out that what they got didn't look like the pictures.? I picked up some from this source and they all had threads with nuts and washers.? Way more pricey than the ones direct from China, but I got them in two days instead of two or three weeks.

The pins on the bare encoder are pretty flimsy and I needed a way to connect to them remotely, so I mounted them to a small board and added a five pin header. I also added the 10k resistors in series with the encoder and push button contacts, although I'm not sure I really needed those:

www.amazon.com

Amazon.com: uxcell? 5Pin D Shaft 20 Detents Points 360 Degree Rotary Encoder w Push Button: Electronics

From: SoftwareControlledHamRadio@... on behalf of Bob Mix bob.mix@... [SoftwareControlledHamRadio]
Sent: Wednesday, August 17, 2016 3:34 PM
To: SoftwareControlledHamRadio@...
Subject: Re: [SoftwareControlledHamRadio] KY-040 encoder threaded for mounting?

Search on 281678080243 at ebay.com.

Bob KF6ABC Mix

On 8/17/2016 2:05 PM, n4elm@... [SoftwareControlledHamRadio] wrote:

?

I have ordered and received a couple of KY-040 encoders expecting to get the ones that are threaded to take a nut and getting ones that are unthreaded. The vendors have been nice about refunding money but I really need a encoder threaded and with a mounting nut.

Anyone know of a source or want to trade for an unthreaded encoder?

Thanks!

Dave, N4ELM

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