😬 ok, well, 50V caps for 24VAC (33.6V peak). I have to assure myself that capacitor tech changed a LOT
September 13, 2026 at 12:10 AM
😬 ok, well, 50V caps for 24VAC (33.6V peak). I have to assure myself that capacitor tech changed a LOT
Just finished wiring in an isolation relay and 24vac source to make my 50s era wall heater work with a 2025 smart thermostat 🫠
December 9, 2025 at 4:23 AM
Just finished wiring in an isolation relay and 24vac source to make my 50s era wall heater work with a 2025 smart thermostat 🫠
24VAC adapter plugged in… and it works now, wall thermostat included.
May 11, 2026 at 11:06 PM
24VAC adapter plugged in… and it works now, wall thermostat included.
if you see this, post a transformer
November 18, 2024 at 6:30 PM
if you see this, post a transformer
turns out they have 24VAC motors! not sure if I should use relays, triacs, or make a VFD!
September 9, 2026 at 1:18 AM
turns out they have 24VAC motors! not sure if I should use relays, triacs, or make a VFD!
Are you going to use that ac coil contactor on dc?
About half the impedance is reactance, so your 24vac relay will melt at 24vdc because its basically got the resistance for a 12vdc relay. Twice the current is 4x the power.
:]
About half the impedance is reactance, so your 24vac relay will melt at 24vdc because its basically got the resistance for a 12vdc relay. Twice the current is 4x the power.
:]
January 3, 2025 at 8:08 PM
Are you going to use that ac coil contactor on dc?
About half the impedance is reactance, so your 24vac relay will melt at 24vdc because its basically got the resistance for a 12vdc relay. Twice the current is 4x the power.
:]
About half the impedance is reactance, so your 24vac relay will melt at 24vdc because its basically got the resistance for a 12vdc relay. Twice the current is 4x the power.
:]
Well, the weekly robot was something of a fail. I had a bit of a delayed start trying to decide what to do with the 24VAC motors it uses, I had a issues with the controller power supply, the input was higher than my lego-brick adapters could accept. My dev environment also got messed up.
:/
:/
September 15, 2026 at 12:17 AM
Well, the weekly robot was something of a fail. I had a bit of a delayed start trying to decide what to do with the 24VAC motors it uses, I had a issues with the controller power supply, the input was higher than my lego-brick adapters could accept. My dev environment also got messed up.
:/
:/
Good news, the motors are just 24VAC. Bad news, the up/down motor isn't working :(
September 9, 2026 at 1:06 AM
Good news, the motors are just 24VAC. Bad news, the up/down motor isn't working :(
gah. and now, with the 24VAC power brick plugged in, the Hub is non-functional once more. no lights.
May 12, 2026 at 3:39 AM
gah. and now, with the 24VAC power brick plugged in, the Hub is non-functional once more. no lights.
secured the new cables in the shed instead
August 25, 2025 at 7:54 PM
secured the new cables in the shed instead
Back in Stock! 24VAC Isolated Interface for Raspberry Pi Arduino by Concise Technologies Inc.
View on Tindie #RaspberryPi
View on Tindie #RaspberryPi
October 2, 2026 at 8:31 PM
Back in Stock! 24VAC Isolated Interface for Raspberry Pi Arduino by Concise Technologies Inc.
View on Tindie #RaspberryPi
View on Tindie #RaspberryPi
What kind of heating/cooling system do you have? Is it 24VAC controlled? Multiple heating/cooling stages?
Do you want wifi, thread, zigbee, zwave, homekit, etc etc etc
There are a stupid number of things to consider. 🫠
Do you want wifi, thread, zigbee, zwave, homekit, etc etc etc
There are a stupid number of things to consider. 🫠
June 12, 2026 at 3:17 AM
What kind of heating/cooling system do you have? Is it 24VAC controlled? Multiple heating/cooling stages?
Do you want wifi, thread, zigbee, zwave, homekit, etc etc etc
There are a stupid number of things to consider. 🫠
Do you want wifi, thread, zigbee, zwave, homekit, etc etc etc
There are a stupid number of things to consider. 🫠
Recently spent days debugging our home cooling system. Turned out that a fresh air damper was burning out its motor and drawing 5V from the 24VAC control lines. That didn't leave enough voltage to activate the compressor relay, but only when the thermostat was also charging its internal battery.
August 21, 2025 at 7:28 PM
Recently spent days debugging our home cooling system. Turned out that a fresh air damper was burning out its motor and drawing 5V from the 24VAC control lines. That didn't leave enough voltage to activate the compressor relay, but only when the thermostat was also charging its internal battery.
"Rue, your working on the weekly robot, right?"
"Errr, well no, I kind -this- cause it was bugging me..."
Capacitor dropper for 24VAC people, note that at higher currents the series caps start to stress out and get warm.
"Errr, well no, I kind -this- cause it was bugging me..."
Capacitor dropper for 24VAC people, note that at higher currents the series caps start to stress out and get warm.
September 19, 2026 at 4:31 AM
"Rue, your working on the weekly robot, right?"
"Errr, well no, I kind -this- cause it was bugging me..."
Capacitor dropper for 24VAC people, note that at higher currents the series caps start to stress out and get warm.
"Errr, well no, I kind -this- cause it was bugging me..."
Capacitor dropper for 24VAC people, note that at higher currents the series caps start to stress out and get warm.
so we've still got to find a replacement cable, but while we've got the bad cable cleaned up and working again (for now) I'm now moving on to a stabilizer replenisher pump that is stuck on, even though the CPU thinks its not.
March 22, 2026 at 12:58 AM
so we've still got to find a replacement cable, but while we've got the bad cable cleaned up and working again (for now) I'm now moving on to a stabilizer replenisher pump that is stuck on, even though the CPU thinks its not.
oh snag!
The rectified 24VAC is 33V, and the dc-dc converters I have aren't rated that high! ugh!
Its a silly problem there must be a million ways I can solve it...
The rectified 24VAC is 33V, and the dc-dc converters I have aren't rated that high! ugh!
Its a silly problem there must be a million ways I can solve it...
September 14, 2026 at 12:36 AM
oh snag!
The rectified 24VAC is 33V, and the dc-dc converters I have aren't rated that high! ugh!
Its a silly problem there must be a million ways I can solve it...
The rectified 24VAC is 33V, and the dc-dc converters I have aren't rated that high! ugh!
Its a silly problem there must be a million ways I can solve it...
USRoboticsin modeemeissa myös 24VAC, toiminee. Niitähän kunnon kettuleilla on nurkissa 😍
August 3, 2026 at 5:41 PM
USRoboticsin modeemeissa myös 24VAC, toiminee. Niitähän kunnon kettuleilla on nurkissa 😍
Pitco 60157202 24 VAC Contactor Coil
Order Pitco 60157202 Fryer 3-Pole Contactor Coil 50/60HZ 50AMP 24VAC at PartsFe. Shop Restaurant Equipment Parts & Accessories with best prices, same-day ship.
Visit the website: partsfe.com/contactor-24...
#PitcoContactorCoil, #FryerContactor, #partsfe,
Order Pitco 60157202 Fryer 3-Pole Contactor Coil 50/60HZ 50AMP 24VAC at PartsFe. Shop Restaurant Equipment Parts & Accessories with best prices, same-day ship.
Visit the website: partsfe.com/contactor-24...
#PitcoContactorCoil, #FryerContactor, #partsfe,
October 3, 2026 at 12:00 PM
Pitco 60157202 24 VAC Contactor Coil
Order Pitco 60157202 Fryer 3-Pole Contactor Coil 50/60HZ 50AMP 24VAC at PartsFe. Shop Restaurant Equipment Parts & Accessories with best prices, same-day ship.
Visit the website: partsfe.com/contactor-24...
#PitcoContactorCoil, #FryerContactor, #partsfe,
Order Pitco 60157202 Fryer 3-Pole Contactor Coil 50/60HZ 50AMP 24VAC at PartsFe. Shop Restaurant Equipment Parts & Accessories with best prices, same-day ship.
Visit the website: partsfe.com/contactor-24...
#PitcoContactorCoil, #FryerContactor, #partsfe,
Even getting tagged by 24VAC on the hand will make you move unconsciously before you realized what happened
August 15, 2026 at 8:21 PM
Even getting tagged by 24VAC on the hand will make you move unconsciously before you realized what happened
Reminded me of fixing a friends furnace a few months ago, the 24vac transformer went bad, didn’t have an exact replacement but there was room to fit a generic 24vac replacement I had. (Bottom right) (dead one is bottom left, left it there incase anyone ever wanted to order an exact replacement.)
March 10, 2026 at 11:44 PM
Reminded me of fixing a friends furnace a few months ago, the 24vac transformer went bad, didn’t have an exact replacement but there was room to fit a generic 24vac replacement I had. (Bottom right) (dead one is bottom left, left it there incase anyone ever wanted to order an exact replacement.)
I'm assuming the not working now bit is because of the DC vs AC finally catching up. 24VAC power supply thus coming tomorrow.
May 11, 2026 at 3:55 AM
I'm assuming the not working now bit is because of the DC vs AC finally catching up. 24VAC power supply thus coming tomorrow.
wired up the light in my garden to the irrigation controller so now i can switch it on/off via home assistant :)
(it's the new contactor on the top right in the box. the second contactor is as yet unused, idk what i'll do with it)
(it's the new contactor on the top right in the box. the second contactor is as yet unused, idk what i'll do with it)
April 12, 2026 at 7:10 PM
wired up the light in my garden to the irrigation controller so now i can switch it on/off via home assistant :)
(it's the new contactor on the top right in the box. the second contactor is as yet unused, idk what i'll do with it)
(it's the new contactor on the top right in the box. the second contactor is as yet unused, idk what i'll do with it)
52 robots in 52 weeks,
ok, the yellow is 24vac power and the other one is all the signals.
I need to make the controller board this connects to!
ok, the yellow is 24vac power and the other one is all the signals.
I need to make the controller board this connects to!
September 14, 2026 at 12:28 AM
52 robots in 52 weeks,
ok, the yellow is 24vac power and the other one is all the signals.
I need to make the controller board this connects to!
ok, the yellow is 24vac power and the other one is all the signals.
I need to make the controller board this connects to!
24vac adapter
MRE is one of the leading manufacturers of CCTV Power Supply 4 Channel. Highly Reliable, Cost-Effective, Compact In Size & Light In Weight.
visit:- mresmps.com/product/dc-2...
MRE is one of the leading manufacturers of CCTV Power Supply 4 Channel. Highly Reliable, Cost-Effective, Compact In Size & Light In Weight.
visit:- mresmps.com/product/dc-2...
January 10, 2025 at 10:20 AM
24vac adapter
MRE is one of the leading manufacturers of CCTV Power Supply 4 Channel. Highly Reliable, Cost-Effective, Compact In Size & Light In Weight.
visit:- mresmps.com/product/dc-2...
MRE is one of the leading manufacturers of CCTV Power Supply 4 Channel. Highly Reliable, Cost-Effective, Compact In Size & Light In Weight.
visit:- mresmps.com/product/dc-2...