AC/DC 6 volt Adapter

[Damo636]

I have been looking at the above adapters to possibly power my EQ5 from the mains via an extension lead. There are various choices each with different MA ratings. Does anyone know which MA rating to go for? I see the standard Duracell batteries have MN1300 LR 20 printed on them. Am i correct in saying i would need a 1300 MA rated adaptor?

Thanks

[spaceboy]

I've ran one motor of an adapter of 600ma successfully so I assume duel motors would draw double and so require 1200ma.

[Damo636]

Thanks for that.

[Nexus 6]

Damo have you not thought of using one of these? 13.8V Regulated Mains Power Units : Bench Power Supplies : Maplin as long as you use some cable from FLO such as this First Light Optics - SkyTron Power Supply Cable for Skywatcher & Celestron Mounts you should be fine, be aware though if the run is long the voltage drop may affect the performance.

I use the same kit to power my 925

[Bizibilder]

The EQ5 with basic motor drive is 6v. The mA you refer to is milliamps (1/1000 amp). If your motors require 1 Amp to track then you need 1000mA available from the supply, for 2 Amps you need 2000mA.

I think the EQ5 uses around 2000mA if you are fast slewing both axis simultaneously and less than 1000 mA for single (RA) axis tracking. So a 2000mA supply will be OK (3000mA may be better as it has some in reserve). The motors will only draw the current they need from the supply, not the maximum available.

[Damo636]

Cheers guys, i have to confess to being a complete numpty when it comes to anything electrical.

[spaceboy]

Sorry Damo! It's lucky Bizi posted as I had forgotten the duel motors have several slew speeds to choose from. As Bizi so rightly points out though the motors are direct current as so only draw power as needed. The voltage is the important one to right. This said it is still advisable to have some form of in line fuse in case the motors were to become overloaded. OTA hitting the mount and so forth.

[stev74]

Just in case you haven't seen the reply to your question on my 'for sale' thread I got the adapter from AstroBoot it was a while ago but if you have a rumage you might find one too.

Am i correct in saying i would need a 1300 MA rated adaptor?

The adapter that I am selling with my 200P is 1300MA I believe and has worked fine with my dual axis motors.

Cheers

[Nillchill]

just a thought here, I have a 5v 2.5a supply, would that be enough to run my motors?

though I know Maplins sell a 6v 2A power convertor though i think it costs £14

[Damo636]

Thanks Steve, i hadn't seen your reply.

[Damo636]

This one on offer at the minute. High Power MultiVoltage Plug Top Power Supply : Multi Voltage Power Supplies : Maplin Should be ok as it is rated 2500 ma at 6 volts ?

[spaceboy]

This is the one I went with High Power MultiVoltage Desktop Power Supply Free Delivery : Multi Voltage Power Supplies : Maplin (was in the sale at the time)

More than enough power and I can select the voltage to use it with various mounts.

[Nexus 6]

would take the one spaceboy suggests Damo, to be safe and protect your kit plug in an RCD too. I'm not saying your choice would not do the job though mate.

[Damo636]

Cheers lads. I hadn't seen that one.

[Nexus 6]

loads of options on Maplin for power Damo, you can go round in circles sometimes. :)

[Damo636]

Tell me about it Alan Ah well, at least i have learned there's 1000 milliamps in an amp with all the researching

[Nexus 6]

Tell me about it Alan Ah well, at least i have learned there's 1000 milliamps in an amp with all the researching