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 Post subject: RCA Victor 6HF5 HELP ME!!!
PostPosted: Apr Fri 30, 2021 1:51 am 
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Joined: Apr Fri 30, 2021 1:29 am
Posts: 10
I have an old RCA player I want to restore. Model 6 HF 5. I have little to no knowledge, so I’m learning as I go. Changer has to be gone through and cleaned. The platter turns when activated, but no sound. I replaced a missing tube....no dice. I’ve yet to find out what kind of needle and/or cartridge I need to replace the old one. This one may not even be original. Any help is greatly appreciated I’m gonna attach a couple pics of the cartridge.


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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: Apr Fri 30, 2021 3:28 am 
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Joined: Jan Tue 31, 2012 1:55 am
Posts: 17148
Location: Mountains of Mourne. Ireland.
Both service manuals can be found attached to this post...
viewtopic.php?p=3370422#p3370422

Changer model number will be rubber-stamped on the bottom. At times it can be found under the mat or platter.


Greg.


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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: Apr Fri 30, 2021 3:59 am 
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Joined: Dec Wed 25, 2013 7:57 am
Posts: 5420
In case you're not sure about how to do this. You would likely have to clean/lubricate the mechanical parts; the electronics would be restored like an old tube radio.

https://antiqueradio.org/FirstStepsInRestoration.htm


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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: Apr Fri 30, 2021 9:58 pm 
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Joined: Apr Fri 30, 2021 1:29 am
Posts: 10
Thanks for the help guys! Any links to a good website to buy a replacement needle or cartridge? I’ve read that most people put the 89t in these.


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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: Apr Fri 30, 2021 10:01 pm 
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Joined: Apr Fri 30, 2021 1:29 am
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Also, this is a pic of the changer. Didn’t see that Mosel number in the chart you sent egg


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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: Apr Fri 30, 2021 11:29 pm 
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Joined: Jan Wed 16, 2013 12:04 am
Posts: 2411
Location: 77001
ChrisBrummett wrote:
Also, this is a pic of the changer. Didn’t see that Mosel number in the chart you sent egg

Yes, your model number is in the chart.
It's right there on the changer base: RP-198 5 N.

The cartridge is an original Sonotone 2-T.
They are great MONO carts. 2-T non-stereo compliant cart.
Stylus is Pfanstiehl 800.

A Pfanstiehl stereo cart P228 jumpered to
mono for your RCA will work very well, also.
Then you can play stereo albums.

Hotwax


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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: May Mon 03, 2021 2:44 pm 
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Joined: Apr Fri 30, 2021 1:29 am
Posts: 10
HotWax...I wasn’t sure if the numbers following 198 mattered. Thank you! Also, do you know a good website to buy the replacement stylus? It always seems they have a slightly different # than what I’m looking for, and I don’t have the knowledge to know what will work as a sub.


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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: May Mon 03, 2021 3:27 pm 
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Joined: Jan Wed 16, 2013 12:04 am
Posts: 2411
Location: 77001
ChrisBrummett wrote:
HotWax...I wasn’t sure if the numbers following 198 mattered. Thank you!
Also, do you know a good website to buy the replacement stylus? It always seems they have a slightly different # than what I’m looking for, and I don’t have the knowledge to know what will work as a sub.

Chris,
1. Are you going to use the Sonotone 2-T you have there ?

If so, use thevoiceofmusic. com, go to needles/styli,
and type in the Pfanstiehl number 800.

2. RP-198 is sufficient to I.D. the changer.
The other numbers are probably run numbers
or such.

3. We have the service folder for the RP-197/198 changers,
if you need it.

Hotwax


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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: May Fri 07, 2021 12:59 am 
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Joined: Apr Fri 30, 2021 1:29 am
Posts: 10
Hotwax...I went with the P228. The old cartridge has 2 posts for the 2 wires coming off the tonearm. This new one has 4 posts, so I gotta do some research I suppose.


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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: May Fri 07, 2021 3:44 am 
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Joined: Jan Wed 16, 2013 12:04 am
Posts: 2411
Location: 77001
ChrisBrummett wrote:
Hotwax...I went with the P228. The old cartridge has 2 posts for the 2 wires coming off the tonearm. This new one has 4 posts, so I gotta do some research I suppose.

Chris,
The changer must be removed and put on a work space,
so you can install the P-228.
Be very careful of the fine tonearm wires, as they
can be broken from their connectors easily.

What you will do is to jumper both R/L stereo pins
and jumper both ground pins of the cartridge.

There are numerous ways to wire this.
In the end you should have both channels
wired to one tonearm wire.
The other tonearm wire should have both grounds
wired to it.
It does not matter which tonearm wire you use
for stereo or ground connection.

There should be female blade connectors on the end
of the 2 tonearm audio wires.

With the P-228, you will be provided with 4
dual-purpose Combo-clip connectors from Gary.

And there should be 4 short, colored
jumper wires.

Both will be inside the plastic phono cartridge box
underneath the foam padding.

I find the jumper wires too stiff to work
with easily. So you can use any larger gauge
wire to make jumpers. E.g. 26 gauge stranded.

First, carefully use a thin blade pocket knife to open the
diameter of the 4 Combo-clip connectors.
The connectors are made with a cut in their
tubular end.
This, so that when you fit them over the P-228 connector pins,
the Combo-clip connectors can slide on snugly.
Use needle nose pliers to remove the connectors
from the cart pins, if needed.

Strip a short length of insulation from the wires, twist
the strands tight, and solder short jumper wire lengths to
each of 4 connector pins, in the blade through-hole.

Strip a small length of insulation from remaining ends of
4 wire lengths. Twist ends of each of 2 wires together and
solder to one tonearm wire. Repeat for the other tonearm wire.

I would recommend that you do not cut off the female blade
connectors on the tonearm wires for the above.
Instead, use a V-M Combo-clip connector to solder the
twisted wires to, and use the blade end of the Combo-clip connector
to insert into the female blade connector.

Again, you can pry open the tubular end of the V-M connector,
so that you will have enough room to insert the
2 twisted together wires. Small amount of solder to
secure in the blade connector.

The female connector can be carefully crimped to
ensure a snug fit with the blade connector.
Clean the female connector so you have some
clean metal for a good connection.

In addition, you must be careful removing the P-228
plastic mount piece that clips on the P-228 body.
You will have to do this, to be able to screw the 2
tonearm mounting screws into their threaded holes.

You may also have to obtain longer cartridge mounting
screws, due to the thicker plastic mount of the P-228.

We'll continue with the rest of the process later.

Attaching some info from the V of Music website,
and the 3rd hand product.
Hotwax

https://thevoiceofmusic.com/cartridges_ ... #StereoCar

https://thevoiceofmusic.com/popup_pics. ... jpg&TITLE=

https://shop.harborfreight.com/media/ca ... _22585.jpg


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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: May Fri 07, 2021 8:23 pm 
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Joined: Apr Fri 30, 2021 1:29 am
Posts: 10
Hotwax...you’re a godsend man. I’m gonna tackle this tonight. There were two wire harnesses attached to the changer that I’m not sure how to properly remove. One plugs into the bottom of the changer, one set plugs into the amp.


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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: May Fri 14, 2021 1:58 am 
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Joined: Apr Fri 30, 2021 1:29 am
Posts: 10
Well I installed the new cartridge, and decided to give it a go. Playing very softly, regardless of volume knob position. In fact...still plays at same, quiet level even when volume knob is turned all the way down.


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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: May Fri 14, 2021 2:50 am 
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Joined: Jan Wed 16, 2013 12:04 am
Posts: 2411
Location: 77001
ChrisBrummett wrote:
Well I installed the new cartridge, and decided to give it a go. Playing very softly, regardless of volume knob position. In fact...still plays at same, quiet level even when volume knob is turned all the way down.

Chris,
What restoration of the amp has been done ?

Hotwax


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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: May Fri 14, 2021 4:26 pm 
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Joined: Apr Fri 30, 2021 1:29 am
Posts: 10
Hotwax... I installed a tube that was missing when I bought it, but that’s it.


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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: May Fri 14, 2021 5:04 pm 
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Joined: Jan Wed 16, 2013 12:04 am
Posts: 2411
Location: 77001
ChrisBrummett wrote:
Hotwax... I installed a tube that was missing when I bought it, but that’s it.

You'll need to replace all the caps, except
ceramics.

Check all wiring/insulation and all resistors' values.

Have the tubes checked for shorts/functionality.
Hotwax


Last edited by Hotwax on May Fri 14, 2021 6:52 pm, edited 1 time in total.

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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: May Fri 14, 2021 6:23 pm 
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Joined: Apr Fri 30, 2021 1:29 am
Posts: 10
Hotwax...I’ve been researching a bunch, and I’m aware of the capacitors needing replaced. Doing it is another thing lol. I’m slowly learning. Do you think the issue is in the amp? That’s what I was figuring too. And seems it is a fire hazard if not done.


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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: May Fri 14, 2021 7:10 pm 
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Joined: Jan Wed 16, 2013 12:04 am
Posts: 2411
Location: 77001
ChrisBrummett wrote:
Hotwax...I’ve been researching a bunch, and I’m aware of the capacitors needing replaced. Doing it is another thing lol. I’m slowly learning. Do you think the issue is in the amp? That’s what I was figuring too. And seems it is a fire hazard if not done.

Since this is a series string heater circuit, I don't think there is
a significant fire hazard.
I would make sure there are no shorts, e.g. in
a resistor.
Shorts make for electrical risk, so read up on basic safety
rules for working on these tube amps.

Bad caps certainly affect the output and quality of sound.

You can do some tube voltage/shorts testing before the re-cap,
when you learn about these tube amps' potential
high-voltage dangers. This high voltage applies to the electrolytic
filter caps retaining high-voltage after power is off.


Or, you can re-cap first, but make sure
to check the resistors before re-cap.

If you don't have a multi-meter, get one.

See this thread for background on RS-150 amp:

viewtopic.php?t=226042



Capacitor tutorials here:

http://www.wjoe.com/capacitorinfo.htm

https://www.justradios.com/captips.html

https://www.justradios.com/MFMMFD.html


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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: May Tue 18, 2021 12:55 am 
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Joined: Apr Fri 30, 2021 1:29 am
Posts: 10
What’s the proper way to unplug these? Definitely don’t want to break anything...


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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: May Tue 18, 2021 2:32 am 
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Joined: Jan Wed 16, 2013 12:04 am
Posts: 2411
Location: 77001
ChrisBrummett wrote:
What’s the proper way to unplug these? Definitely don’t want to break anything...
Chris,
The upper circled round item on the underside of
the record changer base is the On/Off switch
for the record changer motor.

DO NOT remove it. It is to stay in place.

The lower two cables are :
1. Right side of chassis: for the audio input to the
amp from the tonearm/cartridge

2. Left side of chassis: the AC power supply to the record changer motor.

These plug-in cables can seat VERY securely in their sockets on the
chassis.

Use your fingers to try to pull/leverage the left plug, by rotating where
you place your fingers, so that you are pulling from
several sides of the plug.

In the event that it won't come out by hand,
use a very thin flat-end screwdrive to carefully/gently pry
up the plug from different sides of the plug.

The flat plug on the right side will need you to use
a screwdriver, as there is not sufficient material
there to grip well with your fingers.
Just go very slow with that plug, when inserting the
thin flat screwdriver and prying it up from the socket.

You will be placing the screwdriver between the plastic
plug body and the metal chassis body.

Hotwax


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 Post subject: Re: RCA Victor 6HF5 HELP ME!!!
PostPosted: May Tue 18, 2021 2:33 am 
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Joined: Dec Mon 23, 2019 5:52 pm
Posts: 509
The wires on the changer itself do not unplug, that's just a cover over the switch. The two plugs on the amp chassis can be removed by inserting a small screwdriver blade between the plugs and the chassis and gently prying them up while rocking the plugs back and forth.


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