I am rebuilding a 1960 RCA stereo and do not understand the capacitor values in the table.

I have listed below the various samples, can someone clarify what this / these mean (Cap & volt) ?

Fixed Capacitors
1. 27 NPO 10%
2. 5.6 N3300
3. 36 N150 5%
4. 560 (No other values provided relating to the capacitor, this is typical)
5. .001 10%

Electrolytic Capacitors
6. 8MFD 10NP

Also, where is the best place to purchase replacement Capacitors (Price & delivery)

I'll give you my best guess...

27 NPO is a 27 picofarad temperature stable capacitor. NPO is Negative/Positive/Zero which means the capacitance does not change with temperature. This will be in the oscillator somewhere.

36 N150 is 36 Picofarads with a negative 150 parts per million temperature coefficient.

.001 is .001 microfarads

I am not sure about the 5.6 N3300 designation as the standard temperature coeffs are P100, NPO, N30 N80 N150 N220 N330 N470 and N750. Perhaps its a 5.6 Pf with a N330 with a misprint.

560 is probably 560 pf although, if it were marked on the capacitor itself, it would probably be 56 pf. They don't usually use the capacitor codes in the parts lists.

The 8 microfarad part looks like a non-polarized part for use somewhere where there is AC present, like a filament. I would guess 10 volts on that one. For this cap, maybe you can find it in the circuit and confirm that it is somewhere with low voltage AC. Maybe there are more markings on the actual part.

The small capacitors (pf) usually don't need to be replaced.

Tony

:I am rebuilding a 1960 RCA stereo and do not understand the capacitor values in the table.
:
:I have listed below the various samples, can someone clarify what this / these mean (Cap & volt) ?
:
:Fixed Capacitors
:1. 27 NPO 10%
:2. 5.6 N3300
:3. 36 N150 5%
:4. 560 (No other values provided relating to the capacitor, this is typical)
:5. .001 10%
:
:Electrolytic Capacitors
:6. 8MFD 10NP
:
:Also, where is the best place to purchase replacement Capacitors (Price & delivery)
:

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IMHO I would say that unless you are definitely and specifically having freq drift, that the first three items that you list should be left alone as they are special ceramic capacitors with different design types of their dielectric materiel for the NPO, N150, N3300 and even other numerical designations, with special temperature shifting of capacitance value at different temperatures . Typically used in oscillator stage design to compensate for freq shift with thermal warm up of equipment. Lets say, that if that RCA of yours utilized 1000 capacitors in its complement, those would be the last 3 that I would be suspicioning, that is, considering that you are merely doing a mass replacement of components in the name of “ complete restoration”. There are certain things best left avoided unless specifically at fault and those would definitely be in that category, as even distributed capacitance with their physical placement can exude tuning changes.
As for the 560 I would probably consider it to be a common disc ceramic unit of 560 mmf …..or pf nowadays, but you can best ascertain that since you can do a visual of its physical type (disc cer or paper ?).
As for the .001 , the same way, as far as it being either of paper or ceramic design.

Now, the last item in the form of a 6. 8MFD 10NP, or a 6.8 ufd at 10VAC non polarized electrolytic, might actually might be an item whose electrolyte has dried out and has dropped capacitance and deteriorated performance. With out reference to a schematic I am assuming it to be a high pass coupling capacitor from the audio output to a midrange
squawker speaker. Stereo....I would expect one being used for each channel.....Typically one sees lower capacitance than that 6.8 value when coupling into a tweeter. As a hard to find item, that might require the utilization of a series common polarity connection of a pair of 15 ufd at 15vdc electrolytics to effectively make/get
~7.5 ufd AC capacitor and a resultant smidge more low frequency elemental frequency passage into the squawker.Electrolytics are not close tolerance manufacturable items anyway , due to the iffy formation of their aluminum oxide layers as well as their specific surface area along with the degree of electrolyte moistness.Its a lot of shooting at the value and then sorting out values.
To be any more exacting I would need a model or chassis number to reference on the aforementioned components.
73’s de Edd
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:I am rebuilding a 1960 RCA stereo and do not understand the capacitor values in the table.
:
:I have listed below the various samples, can someone clarify what this / these mean (Cap & volt) ?
:
:Fixed Capacitors
:1. 27 NPO 10%
:2. 5.6 N3300
:3. 36 N150 5%
:4. 560 (No other values provided relating to the capacitor, this is typical)
:5. .001 10%
:
:Electrolytic Capacitors
:6. 8MFD 10NP
:
:Also, where is the best place to purchase replacement Capacitors (Price & delivery)
: