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 Post subject: Sam's for shf 4/ 9-t-1 tuner
PostPosted: Sep Sat 21, 2013 12:46 am 
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Joined: Jan Wed 28, 2009 1:10 am
Posts: 176
Location: Ohio
Hey guys...I guess it's time I start on a shf 4 I bought a while ago....looking for a sam's photofact/schematic for the radio and the amp. Any help?
Thanks!

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 Post subject: Re: Sam's for shf 4/ 9-t-1 tuner
PostPosted: Sep Sat 21, 2013 1:57 am 
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Joined: Apr Wed 09, 2008 3:37 am
Posts: 14353
Location: Little Rock, Arkansas
There is no photofact for the SHF-4. The amp is the same as an SHF-5, so you will need that photofact for your amplifier. The tuner is the same as the tuner in a 6-HF-3, although the dial scales are different. The electronics of the two tuners are identical.


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 Post subject: Re: Sam's for shf 4/ 9-t-1 tuner
PostPosted: Sep Sat 21, 2013 3:23 am 
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Joined: Jan Wed 28, 2009 1:10 am
Posts: 176
Location: Ohio
thanks Larry...

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 Post subject: Re: Sam's for shf 4/ 9-t-1 tuner
PostPosted: Sep Sat 21, 2013 3:27 am 
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Location: Central PA 16801
larry,

i need the shf-4 tuner schematic also, do you have it ?

steve

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 Post subject: Re: Sam's for shf 4/ 9-t-1 tuner
PostPosted: Sep Sat 21, 2013 4:58 pm 
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Joined: May Sat 06, 2006 4:03 am
Posts: 3603
Location: ZIP 23831 South of Richmond, VA 25 miles down the pike.
Try these links.
Bill J.

L ink to SAMS 323-11 6HF3 7HF3 9T1 RC1155 A RS151 A

https://app.box.com/s/f028tkfltixa6y773473

Link to SAMS 387-13 SHF5 SHF4 SA2 SA3 RS141B

https://app.box.com/s/3pqfgn0zonog780a68kq


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 Post subject: Re: Sam's for shf 4/ 9-t-1 tuner
PostPosted: Sep Sun 22, 2013 5:39 pm 
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Joined: Jan Wed 28, 2009 1:10 am
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Location: Ohio
Thanks Bill..

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Dean L.


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 Post subject: Re: Sam's for shf 4/ 9-t-1 tuner
PostPosted: Sep Mon 23, 2013 10:25 pm 
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Joined: May Sat 06, 2006 4:03 am
Posts: 3603
Location: ZIP 23831 South of Richmond, VA 25 miles down the pike.
Hi there..I appreciate the links you posted....Hope you don't mind, but I'm wondering about the sam's for the 9-t-1 tuner - keep in mind I'm somewhat of a novice at this, to say the least, so I just want to make sure that this is the one I should be using....I've been warned to make sure it is the correct one. Do you know if there is one available for my specific tuner? If there are differences between my tuner and the one in the linked manual, do you know what they might be?.....Like I said, I'm not too electronically minded....so any help would be appreciated.

Hey Dean,
I'm going to answer your PM here because I never know my sending is working. The odds of you having a 9T1 unique tuner requiring a specific schematic are greater than the odds of wining the Power Ball Lottery. Beside the RCA Service Data, SAMS 323-11 is what you will have to use as far as I know. The person warning you to make sure it's the correct one should expound on what they mean. The odds of your tuner exactly matching the RCA Service Data or SAMS 323-11 are little less than the odds of wining the Mega Bucks Lottery.

Sorry, but I would not know the differences between your tuner and SAMS 323-11 if any at all. I don't have your tuner. But I'm confident a qualified service tech could handle the tuner without documentation. And with one snapshot in time documentation he would not have a problem. The only time I would deviate from the schematic is when I can postively be convinced it's a factory change. Then sometimes I might experiment anyway. Read the article in the link below about how SAMS faced the issue of differences. This was back in 1947. I'm sure the problem continued. What do they say, "The only constant thing is change."
Bill J.

https://app.box.com/s/oqzkv231whg8cnv5hshr


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 Post subject: Re: Sam's for shf 4/ 9-t-1 tuner
PostPosted: Sep Mon 23, 2013 11:54 pm 
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Joined: Apr Wed 09, 2008 3:37 am
Posts: 14353
Location: Little Rock, Arkansas
There are NO Sam's photofacts for the SHF-4 or its tuner. I would have one if Sams made it.


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 Post subject: Re: Sam's for shf 4/ 9-t-1 tuner
PostPosted: Sep Tue 24, 2013 2:41 am 
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Location: Central PA 16801
thx.

this one was good enuf.

steve

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 Post subject: Re: Sam's for shf 4/ 9-t-1 tuner
PostPosted: Sep Tue 24, 2013 6:42 am 
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Joined: Jan Mon 25, 2010 7:51 am
Posts: 2764
Location: Toledo, Ohio
I have a 7HF3 and and SHF-5 with an added 9T1 I restored a couple years back. I think I did the j-t-1 with the j-t-2 schematic noting the few differences. Later when I did my 7HF3 I recall that the 6HF3, 7HF3 and 9T1 tuners were very similar. I might be wrong but I do recall some minor differences between the units. Variances do take place in circuits within in the same models during manufacturing especially at later dates. These changes are usually show by variances in the chassis numbers. I would check and compare chassis numbers to make sure any schematic you use is the correct one for your chassis number.

I have never seen a Sams for the j-t-1 though they made one for the j-t-2. Sams folders are pretty crappy and not something I would 100% rely on anyhow. I would say at least 60% of the Sams folders I have used have had errors. The best thing to use is the RCA Service Data sheets and I bet there is probably one for a j-t-1.

A 6HF3 or 7HF3 schematic can be "close enough" but my recommendation is compare the chassis numbers first and if you use a different models schematic and you see differences in what your unit has, then research and find out what should be correct for your specific chassis number.

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