Power Supply Intercompatibility

**Probably.

What would happen if I

**It would probably work just fine, as long as you get the polarity right.

However, you should ensure that the new power supply is a 'regulated' type. An unregulated supply is likely to potentially cause damage.

--
Trevor Wilson
www.rageaudio.com.au

if you set it to 9V it should work well, as long as the polarity is correct.

Bye. Jasen

**Before you provide advice like this, I suggest you get hold of an UNREGULATED power supply and measure the output at 20% of maximum. You will be in for a Hell of a shock.

--
Trevor Wilson
www.rageaudio.com.au

The supply is an Archer for Tandy. I've had it for over 10 years(?). It makes no mention of un/regulated on it's markings.

**Then it will be unregulated (with 99% probability), as regulated supplies are almost always marked appropriately. I advise you not to use it, unless you can check the output Voltage. An unregulated supply can typically deliver 30% - 50% higher Volts, when operating at reduced load. That may cause damage to the connected equipment. A regulated supply will remain within reasonable tolerance (better than 10%) from zero to full load.

--
Trevor Wilson
www.rageaudio.com.au

those adjustable ones are usually pretty good.

Bye. Jasen

**The regulated ones are fine. The unregulated ones are ALL hopeless at dealing with varying loads. And the OP wants to run the device at significantly less than the designed load of the supply.

--
Trevor Wilson
www.rageaudio.com.au

OK, I won't risk it.

Thanx 4 the heads-up.

While we're on the subject. I have an old discman. Next to the power input it says DC9-12V with a negative tip. It doesn't however list the amps. Why is this? Does the ampage(?) not matter with this device?

**It probably will, somewhere. Certainly, the instruction manual will tell you.

Does the ampage(?) not matter with this device?

**It matters. However, given the range of input Voltages, it is possible that an unregulated supply will work OK. Personally, I would always use a regulated supply. The cost difference is minimal.

--
Trevor Wilson
www.rageaudio.com.au

Thanx again Trevor.