Phase Linear 700 question ?

thermal runaway · 10th April 2009, 01:59 PM

Need to know urgently if the Phase Linear 700 had the facility to select 220-240 AC supply or was there a specific export version ?

Cheers

d3imlay · 11th April 2009, 06:34 AM

There is nothing in the service manual about changing line voltage. The 400 manual has a service bulletin that says there were a scattered few with dual primaries. The bulletin recommends using a step up/down xfmr. The series II amps do show dual primaries in the service manual.

If you want to open the front panel and send me a pic of the power supply I can tell you.

callab_gte_net · 12th April 2009, 06:55 AM

Early Phase Linear series 1 products had transformers installed for the country in which they were to be exported to. Phase Linear never had a selector switch on any series 1 products. Late production series 1 products began to use dual primary transformers and typically had a sticker on the chassis or transformer indicating the presence of a dual primary transformer. Most if not all series II products had a dual primary transformer that could be set up for either 120 or 240 volt operation. I have 1 or 2 spare 700 series 1 transformers designed for 240 volt operation. For more information, please contact e-mail me at callab@gte.net

By the way, the Pioneer products that were sold under the Phase Linear name on them which were sold overseas did have a selector switch installed and required no internal re-wiring.

thermal runaway · 12th April 2009, 08:33 AM

Cheers guy's. I missed the amp on ebay before any replies but I'll know for next time now !

10th April 2009, 01:59 PM	#1
thermal runaway diyAudio Member Join Date: Mar 2007 Location: West Mids , UK	Phase Linear 700 question ? Need to know urgently if the Phase Linear 700 had the facility to select 220-240 AC supply or was there a specific export version ? Cheers

12th April 2009, 06:55 AM	#3
callab_gte_net diyAudio Member Join Date: Apr 2009	Phase Linear 700 Transformers Early Phase Linear series 1 products had transformers installed for the country in which they were to be exported to. Phase Linear never had a selector switch on any series 1 products. Late production series 1 products began to use dual primary transformers and typically had a sticker on the chassis or transformer indicating the presence of a dual primary transformer. Most if not all series II products had a dual primary transformer that could be set up for either 120 or 240 volt operation. I have 1 or 2 spare 700 series 1 transformers designed for 240 volt operation. For more information, please contact e-mail me at callab@gte.net By the way, the Pioneer products that were sold under the Phase Linear name on them which were sold overseas did have a selector switch installed and required no internal re-wiring.

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11th April 2009, 06:34 AM	#2
d3imlay diyAudio Member Join Date: Sep 2004 Location: Ohio	There is nothing in the service manual about changing line voltage. The 400 manual has a service bulletin that says there were a scattered few with dual primaries. The bulletin recommends using a step up/down xfmr. The series II amps do show dual primaries in the service manual. If you want to open the front panel and send me a pic of the power supply I can tell you.

12th April 2009, 08:33 AM	#4
thermal runaway diyAudio Member Join Date: Mar 2007 Location: West Mids , UK	Cheers guy's. I missed the amp on ebay before any replies but I'll know for next time now !