phase linear 400

[Gepetto]

Pin 8 should be 0.0005V and is indicative of where you problem lies. It will put the output into current limit. Check the left channel and you will see that this is your problem child. You possibly have an open emitter resistor on the right backplane at location R35 or an open 1 ohm resistor at location R5, also on the right backplane.

 

[Gepetto]

The SPICE model nodal voltages with +/-80V rails are:

12 = -80V
11 = +80V
10 = +0.350V (with bias set to 0.35V)
9 = +0.925V
8 = +500 uV
7 = +80V
6 = 0V
5 = 0V
4 = -300 uV
3 = -80V

This is what your good channel should be close to.

 

[Gepetto]

When I open R35 emitter resistor in the SPICE model, then pin 8 changes to +0.665V, close to your reading. The same reading will result if R5 is open.

 

[ABebar]

Bingo

 

[ABebar]

Cleaned up a cold looking solder joint on the 5w 0.33 ohm resistor. Back in business! Thanks Joe.

 

[Gepetto]

Saved you the frustration of building another control board which would have given you the same result

Glad we got you fixed up quickly.

 

[gene french]

got 4 of the meters lighted...
had company most of the afternoon...
will finish tomorrow...
waiting in the new faces...

 

[gene french]

and then there was light...
switchable...if you want the evil of darkness!!!
lolol

 

[gene french]

having metal tables made to match main part...
waiting on the meter faces markedbin volts and watts...

 

[George S.]

having metal tables made to match main part...
waiting on the meter faces markedbin volts and watts...

I like the metal table idea. I've a big pile of square steel tubing in the garage. Will eventually build a single vertical steel rack with heavy urethane wheels to hold all the PL gear.
Going to braze it together with bronze rod like I used to build bicycle frames. Then sandblast it and probably paint it Snap-On red, just because.

 

[gene french]

I like the metal table idea. I've a big pile of square steel tubing in the garage. Will eventually build a single vertical steel rack with heavy urethane wheels to hold all the PL gear.
Going to braze it together with bronze rod like I used to build bicycle frames. Then sandblast it and probably paint it Snap-On red, just because.

looking forward to seeing that....cool
i always wanted to build furniture with snapon tool cabinets..

 

[gene french]

my lighting looks fantastic at night ...
i reall like those edison led filaments

 

[laatsch55]

Ya need a couple more amps Gene....

 

[gene french]

im good...
lol

 

[AngrySailor]

im good...
lol

Never enough amps gene... c’mon man do we need to get you help?

 

[gene french]

well, mr. george....
found my tuner....dont know why i keep buying stuff...
there is very few stations here....lol
but, it something i wanted...
found a dh-330 refurbished and recapped....
getting there....
almost done

 

[George S.]

That's a nice looking tuner. Looks very user friendly and repairable.
Cool, put up a good antenna and you'll be set. Mines screwed onto a 10' pressure treated 2x4 screwed onto a 4x4 post. Some day I'll put up a real FM antenna.

 

[gene french]

was just searching outdoor omni directional fm antennas as you were writing...
this one was already recapped and realigned...by an audio shop in alberqueque....or that place in new mexico...my spelling aint so good...
the eqs i only cleaned and lubed...
will send pics of the inside of the dh101 and the dh110 to see what my hafler buddy thinks about recapping...
he sells the kits to do it...have bought a ton from him....
all in good fun....and of course ....
its all about the music....
i was just jealous when you wrote you were listening to fm programs...
lololol

 

[George S.]

I enjoy FM Stereo. It sounds really good. For a change I often listen to some country. Only thing I recognized this past week was this John Anderson song.

 

[mr_rye89]

was just searching outdoor omni directional fm antennas as you were writing...
this one was already recapped and realigned...by an audio shop in alberqueque....or that place in new mexico...my spelling aint so good...
the eqs i only cleaned and lubed...
will send pics of the inside of the dh101 and the dh110 to see what my hafler buddy thinks about recapping...
he sells the kits to do it...have bought a ton from him....
all in good fun....and of course ....
its all about the music....
i was just jealous when you wrote you were listening to fm programs...
lololol

Albuquerque…….

What was the name of the shop?