Topaz Ultra Line NoiseIsolator Transformer 91005-31usedTopaz Ultra Line Noise Isolator Transformer 91005-31 5kva 0.0005pf 120/240 Volts as NEWThis the top of the audio line conditioning application Topaz 5000 VA Ultra Line Noise Suppressing Isolation Transformer. It's very difficult to impossible to find, especially with the 0.0005pf (1...1275.00

Topaz Ultra Line Noise Isolator Transformer 91005-31 5kva 0.0005pf 120/240 Volts as NEW [Template]

Listing ID: lis9a3g1 Classified 
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Ships fromtivoli, NY, 12583
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 This the top of the audio line conditioning application Topaz 5000 VA Ultra Line Noise Suppressing Isolation Transformer. It's very difficult to impossible to find, especially with the 0.0005pf (1 trillionith of a farad capacitance!) AND in this as new condition .


I believe this is new old stock, but bought it years ago and can't recall if it was barely used or unused - I also have a 2.5kva that's in it's original packing and brand new, same specs otherwise.

HUGE amount of headroom and noise suppression with ultra clean power. Greater than 146 dB (attenuation) throughout the audible spectrum, up to 20kHz, equates to a 20,000,000-to-1 reduction of common-mode noise. They also provide 65 dB (1780:1) reduction of normal-mode noise.

This Topaz Model no. 91005-31 Ultra Isolation Transformer is rated at 5000 VA, 50/60 Hz, 240/120 Volt
Small footprint (approx. 8 x 8 x 15 in.) and Exclusive shielding
UL and cUL listed & meets UL544 requirements
Reduces common mode and normal mode noise
Large opposing toroidal windings
Saves valuable space.
Protects sensitive loads from surges and spikes and prevents back feeding of noise from load to line
Low leakage current (full safe) allows use of products in hospitals and medical labs


Input voltage 120/240
Output voltage 120/240
Common-mode noise 146dB @ 100kHz
Normal-mode noise 65dB @ 100kHz
Overload capacity 600% for 1 cycle 300% for 30 seconds
Dielectric strength 5,000 VAC minimum
Frequency 47 - 400Hz for 50/60Hz model
Impedance 3 - 5% typical
Efficiency 95% typical

Wt. approx 100 lbs
We'll have to work out shipping. Pick up encouraged. Happy to drive half way to meed for a cash deal - up to a couple hours.

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