Recent content by KiwiMike

Happy new year, The problem i have is one of the speakers was replaced some time back with a cheap response brand speaker so i need to replace both. Im trying to search the www for suitable units.

Hello, By any chance does any one remember lambert audio, were based in waihi in new zealand? Any way i have a Subwoofer coffee table sw120 model which as disintegrated speakers and im trying to find replacements, there 6.5" woofers. Any ideas? Regards Mike

Ah, interesting about that resistor, ive been studying alot of images which dont show a resistor, my nap is a nz assembled unit, Its really a Nap 125 but a 110 is the closest i can find. With the 125 the preamp power was taken off the +ve side of the 10kuf caps then through that resistor to a...

Hello there, Im planning to replace my naim nap 110 snaps which supplies my nac 42 with a superteddyreg , ive noticed there is a 33ohm resistor before the small power supply cap in the 110 , is this resistor reducing the 40v power rail which the smaller capacitor is on? The STR is factory set...

Hey thanks for the ideas, i will start looking for parts asap, the transformer i have at the moment is a 0 - 25vac 0 - 025vac (4 wires) @15VA so i will get another one and try the twin transformer method. Cheers Mike

Thanks but now theres too many options, Im a little overwelmed, Would having 2 identical 25 0 25 transformers work? Or having the 2 rails Parallel with 1 transformer.

My transformer doesnt have dual 25v 0 25v So how would 2 identical transformers go? Im finding it difficuilt to source a dual 25 0 25.

Hi there , just wondering if this attached drawing of my planned power supply is worth considering ? My transformer does not have a dual 25v 0 25v winding, only dual 0 25v thanks for any guidance

This is how i am doing dual 24v , one rail for LH circuits and one for the RH circuits

This is how i am converting over to dual 24v rails keeping all left circuits on one rail and right circuits on the other .

Thanks for your feedback, i will replace the tantalums tomorrow if that doesnt work i will put aside the mother board for now and try one of those clone boards. Mike

Hi there, My nac 225 ( very similar to nac42 ) has developed a problem, when i turn on the power amp there is a delay of approx 5 seconds then a split second hum then a pop and then a hiss from the left channel. This hiss is at a set level not effected by volume control, selecting different...

The photo in rosewinds post is spot on My system was assembled in new zealand The serial # are 22907 and 12907 I might be looking at upgrading the entire power supply as ive found the rectifier bridge is kaput and the 2 x 10,000uf caps might be suspect also Cheers

Hello, Ive just tested my late dads system and it looks like the transformer has failed, is there any schematics on the NAP125 out there Regards Mike