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PCL86

Country:  Europe      Brand:  Common type Europe tube 
  Tube type:  Triode-Beam Power Tube   Audio Frequency 
Tube ID = 3434
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Identical to PCL86 = 14GW8
Similar Tubes Normally replaceable-slightly different:
 13TP4
Heater different:
 ECL86
First year   1960 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s) Apr.1960 : 1960, Heft 8
Base Noval, B9A
Filament Vf 14.5 Volts / If: 0.3 Ampere / -: Indirect / -: Series, AC/DC /
Description Die Heizspannung wird von jedem Hersteller anders angegeben: 13 bis zu 14,5 Volt. Das ist aber unerheblich bei bestimmungsgemässem Einsatz als 300 mA Serientyp. 
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Tube prices 3 Tube prices (visible for members only)

  pcl86.gif
  PCL86: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
pcl86_a.jpg
PCL86: scc
Christian Schaufelberger
 
pcl86_sock.png
PCL86: Telefunken Taschenbuch 1971
Anonymous 15 Collector
 
pcl86_spec.png
PCL86: Telefunken Taschenbuch 1971
Anonymous 15 Collector
Usage in Models   2= 1960? ; 14= 1960 ; 8= 1961?? ; 9= 1961? ; 33= 1961 ; 3= 1962?? ; 3= 1962? ; 34= 1962 ; 6= 1963?? ; 5= 1963? ; 55= 1963 ; 13= 1964? ; 56= 1964 ; 30= 1965?? ; 3= 1965? ; 55= 1965 ; 1= 1966?? ; 7= 1966? ; 39= 1966 ; 8= 1967?? ; 6= 1967? ; 72= 1967 ; 24= 1968?? ; 8= 1968? ; 72= 1968 ; 8= 1969?? ; 27= 1969? ; 77= 1969 ; 29= 1970?? ; 8= 1970? ; 62= 1970 ; 2= 1971? ; 51= 1971 ; 2= 1972?? ; 1= 1972? ; 32= 1972 ; 1= 1973? ; 14= 1973 ; 1= 1974? ; 4= 1974 ; 1= 1975?? ; 1= 1975? ; 9= 1975 ; 1= 1977? ; 3= 1978? ; 1= 1985?? ; 1= 1990??
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):   902
Forum contributions about this tube
PCL86    
Threads: 1 | Posts: 5
Hits: 5674     Replies: 0
PCL86
Omer Suleimanagich
10.Mar.06 		  1
PCL86 
How would one make make a circuit to utilize a PCL86 to replace an ECL86?
John Turrill
11.Mar.06 		  2
Re PCL86 
 Omer,
            believe it or not, I've been known to utilise a voltage 
 doubler to feed the heaters in a case like this - bulky and a 
bit extravagant I know, but good ECL86's seem hard to find.
A pair of 1N5401's and, perhaps, a couple of 2200mF 16v. 
cap.'s - the size of cap. can be used to adjust the final volts; 
maybe a series resistor to trim.
   If you have the room and the bits, I promise it works fine, 
but if feeding more than a pair of valves you may need more 
capacitance and watch the ripple current rating. 

Regards, 
               John. 
 
Jacob Roschy
11.Mar.06 		  3
no subject 




Hello Omer,


you only need to increase the heater voltage. You can use this circuit.


Start with 470 µF (MFD) / 10 V caps for C1 and C2. As for resistor R1, start with 2 - 3 Ohms, 1 - 2 Watts, then vary R1 to adjust to 0.3 A heater current for one tube PCL86. If you don't reach 0.3 A even at 0 Ohms, then increase the capacitors.  Tell us the results you found.


If you operate more then one PCL86 in parallel, then adjust to 14 V heater voltage. Use diodes capable for the increased current.

 

Best Regards

Jacob

Omer Suleimanagich
13.Mar.06 		  4
no subject 
Thank you very much for the prompt reply!  The radio in question still hasn't been received from the seller.  At this stage, I am still contemplating what restoration route I will take.

I am just wondering if a "fire stick" power tube adapter could be fashioned for PCL86 use.  Such an adapter would be quite useful since their is a great surplus of these tubes and the ECL86's are getting pricier.

In addition, maybe adapters could be made for PL84's and UL84's too.
Jacob Roschy
13.Mar.06 		  5
no subject 

It's not always possible to replace an Exx tube by an adequate Pxx or Uxx tube. Many of them have different characteristics, thus they can't be used as replacements.

This is the case in the relation between EL84 and PL84 / UL84.
The EL84 is designed for Vp = Vg2 = 250 V, while PL84 and UL84 are designed for Vp = Vg2 = 170 V - this is quite a difference ! But one can replace an EL86 by a PL84 !


If you're looking for a replacement for an Exx- Tube by a Pxx- tube you have to refer to a tube data book. The ratings for Vp, Vg2, Vg1, Ip and Ig2 should be equal.


Regards

Jacob
 
PCL86    
End of forum contributions about this tube
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