HOLCO RESISTORS
Holco metal film precision resistors have been used in hundreds of classic High End audio components over the past twenty years. They give a crisp, full sound; about as good as it gets in a metal film type. They are used heavily for military use hence the exceptionally close tolerance at 0.5% - 1%. They have low reactance, long term stability and can withstand high voltage pulses.
These resistors have a superb sonic performance. With outstanding musical qualities. Holco resistors are made with no ferrous material. Utilizing the closely controlled production process, the metal film is vacuum deposited on a ceramic substrate whose ends are gold plated. This is then joined to the copper end caps and leads. Hence they are non-magnetic. They are very popular with stepped attenuator a great endorsement to their quality as steps really do test resistors.
We recommend that you do not bend the leads close to the body of the resistor, allow 5mm of lead before bending. We do not recommend that the leads be severely bent flush with the body. All of the resistors offered for sale below were manufactured circa 1993.
The Holco resistors that we stock are the original Meggitt Holsworthy, UK made resistors, manufactured around 1993. These are no longer made to that recipe as the HOLCO division was bought by an American company. They subsequently took all the manufacturing equipment state side and continued to make them but with some cost cutting changes. The major one being the change to steel end caps making the resistors magnetic withan inferior sound. Hence why the original Holcos are very much sought after as they sound so much better than the new counterpart. Hi-Fi Collective have bought up vast stocks of the H4 0.5W and the H2 1W Holco resistors for your enjoyment.
For original data sheet in pdf format,  CLICK HERE.
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H4 0.5W HOLCO RESISTORS
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Material:
Wattage:
Tolerance:
Value Indication:
Insulation Material:
Body Color:
Size:
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Precision metal film
0.5W, 350 volts DC max
+/-0.5% to +/-1%
Characters
epoxy coating
Black
(BODY) diameter-3.7mm, length-10.mm. (LEAD) diameter-0.8mm, length-30mm
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available in the following values: (R=1ohm, 1K2=1200ohms, 1M=1000000ohms)
price: £0.25 each +vat +p&p
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10R
33R
47R
62R5
68R
84R5
100R
120R
150R
169R
200R
270R
270R
300R
326R
330R
370R
390R
470R
475R
560R
649R
680R
750R
820R
1K
1K15
1K2
1K5
|
1K8
2K
2K2
2K4
2K7
2K8
2K87
3K
3K3
3K5
3K9
4K02
4K3
4K7
5K0
6K8
7K2
8K2
8K6
9K1
9K76
10K
10K2
10K5
10K7
11K
11K3
11K8
12K
13K3
|
13K3
13K7
14K
14K3
14K7
15K
1K8
18K
20K
22K
22K1
27K
30K
30K1
33K
33K2
35K
35K3
40K2
40K8
47K
56K
62K
68K
78K
80K6
91K
93K1
95K3
97K6
|
100K
107K
110K
113K
115K
121K
133K
133K
150K
180K
196K
203K
220K
249K
270K
274K
287K
300K
301K
309K
330K
332K
348K
390K
390K
392K
402K
412K
422K
432K
|
442K
453K
464K
487K
499K
523K
549K
560K
604K
634K
698K
715K
732K
750K
768K
787K
806K
820K
845K
866K
887K
909K
931K
953K
976K
1M
1M5
1M7
3M0
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H2 1W HOLCO RESISTORS
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Material:
Wattage:
Tolerance:
Value Indication:
Insulation Material:
Body Color:
Size:
|
Precision metal film
1W, 350 volts DC max
+/-0.5% to +/-1%
Characters
epoxy coating
Black
(BODY) diameter-5.5mm, length-15.5mm. (LEAD) diameter-0.8mm, length-30mm
|
available in the following values: (R=1ohm, 1K2=1200ohms, 1M=1000000ohms)
price: £0.50 each +vat +p&p
|
1R
10R
12R
15R
18R
22R
27R
33R
39R
50R
56R
68R
120R
180R
|
220R
270R
330R
390R
390R
430R
470R
510R
560R
600R
680R
820R
1K
1K8
|
2K2
2K7
3K3
3K9
3K92
4K7
5K6
10K
12K
15K
18K
22K
39K
44K
|
47K
82K
100K
150K
180K
300K
330K
390K
392K
470K
500K
560K
619K
620K
|
680K
820K
910K
1M
1M2
2M2
2M32
2M4
3M0
3M3
3M6
3M8
4M7
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