KyteLabs InfoBase - Electron Tubes & Valves Data Last modified: 2021-06-04 (20302)

6Unterschiedliche Amateurfunkanwendungen
Different Amateur Radio Applications

6.8 Mischstufen
Mixer - Superheterodyne Converter

6.8.1 Triodenmischer
Triode Converters

Hoch - UpRunter - Down 6AN4 DC90 DC96  E86C 
EC86
ECC85 ECC86  
Ub:
Ua:
Rav:
Rg:
Rk:
-
125
-
-
270
90
-
10
1000
-
67.5
-
-
1000
-
90
-
-
1000
-
220
-
5.6
47
-
250
-
12
1000
-
6.3
-
0.5
220
-
12.6
-
0.5
220
-
25
-
0.5
220
-
V
V
kOHM
kOHM
OHM
Ia:
Ig:
Sc:
ra:
7.0
-
2.9
-
2.0
6.0
0.45
20
1.4
3.5
0.37
-
2.2
4.5
0.42
-
12
50
-
-
6.0
-
3.0
18
5.2
-
2.3
22
5.3
-
2.7
20
0.4
-
0.8
11
1.0
-
1.3
8.0
2.6
-
2.0
5.3
mA
µA
mA/V
kOHM
Uosc~:
rin:
f:
1.4
-
-
6.0
13
100
3.5
13
100
4.5
13
100
  3.0
15
100
0.7
-
-
1.0
-
-
1.5
-
-
V.RMS
kOHM
MHz
Ref *? Syl 199 Rod56 199 Tfk61 199 Rft65 Sie68 Phi69 II Sie64 Tfk64 199 Phi58 Sie64 Tfk64 199 Tfk64  

Hoch - UpRunter - Down PCC85  
Ub:
Rav:
Rg:
100
4.7
1.0
170
4.7
1.0
200
8.2
1.0
100
4.7
1.0
170
4.7
1.0
200
8.2
1.0
170
4.7
1.0
V
kOHM
MOHM
Ia:
Ig:
Sc:
ra:
2.7
-
2.2
19
5.5
-
2.8
15
6.0
-
2.9
14
2.2
-
1.7
20
4.8
-
2.2
16
5.2
-
2.3
15
4.8
-
2.2
16
mA
µA
mA/V
kOHM
Uosc~:
rin:
f:
1.8
-
-
2.8
15
100
2.8
-
-
1.8
-
-
2.8
-
-
2.8
-
-
2.8
15
100
V.RMS
kOHM
MHz
Ref *? 199 202 Phi69 202 Sie64 199 Tfk61  

6.8.2 Pentodenmischer
Pentode Converters

Sc = 0.1 ... 5.0 mA/V
Runter - DownRunter - Down  Ua Ug2 Rg1 Ia Ig2 Ig1 Uosc~ Sc Seff rac Rate Ref *?
VVkOHMmAmAµA V.RMSmA/VmA/VMOHM
DF61  45451000.60.1430 3.00.220.31.4 TYP Val62
67.567.51001.350.430 4.00.290.452.0 TYP
  Ua Ug2 Rg1 Ia Ig2 Ig1 Uosc~ Sc Seff rac Rate 20051
VVkOHMmAmAµA V.RMSmA/VmA/VMOHM
Hoch - UpRunter - Down  Uba Ubg2 Ubg1 Rk Ia Ig2 Ug3~ Sc rac Rate Ref *?
VVVOHMmAmA V.RMSmA/VkOHM
5636  10010001503.55.7 151.28320 TYP Val62
  Uba Ubg2 Ubg1 Rk Ia Ig2 Ug3~ Sc rac Rate 20050
VVVOHMmAmA V.RMSmA/VkOHM
Hoch - UpRunter - Down  Ub Ua Ug1 Rg2 Rg1 Ia Ig2 Ig1 Uosc~ Sc rin f Rate Ref *?
VVVkOHMMOHMmAmAµA V.RMSmA/VkOHMMHz
ECF82 
PCF82
1701700301.05.12.13.75 3.01.810100 TYP Sie64
Wfb61
2002000451.05.12.03.8 3.01.8510100 TYP
2502500701.05.61.93.7 3.01.910100 TYP
  Ub Ua Ug1 Rg2 Rg1 Ia Ig2 Ig1 Uosc~ Sc rin f Rate 15075
VVVkOHMMOHMmAmAµA V.RMSmA/VkOHMMHz
Hoch - UpRunter - Down  Uba Ubg2 Rg1 Rk Ia Ig2 Ig1 Ug1~ Sc rac Rate Ref *?
VVkOHMOHMmAmAµA V.RMSmA/VkOHM
E80CF  1701701003308.02.512 3.52.4500 TYP Tfk65
  Uba Ubg2 Rg1 Rk Ia Ig2 Ig1 Ug1~ Sc rac Rate 20051
VVkOHMOHMmAmAµA V.RMSmA/VkOHM
Hoch - UpRunter - Down  Ua Ubg2 Rg2 Rg1 Ia Ig2 Ig1 Ug1~ Sc Seff rac gin f Rate Ref *?
VVkOHMmAmAµA V.RMSmA/VkOHMµSMHz
ECF 8070  190190181008.02.636 2.84.35.6620310200 TYP Tfk65
8.52.730 2.34.56.1600340200 NOM
9.23.024 1.84.76.8580390200 TYP
  Ua Ubg2 Rg2 Rg1 Ia Ig2 Ig1 Ug1~ Sc Seff rac gin f Rate 20051
VVkOHMmAmAµA V.RMSmA/VkOHMµSMHz
Hoch - UpRunter - Down  Uba Ubg2 Ubg1 Rav Rg2 Rg1 Ia Ig2 Ig1 Uosc~ Sc Rate Ref *?
VVVkOHMMOHMmAmAµA V.RMSmA/V
ECF801 
PCF801
200200–1.42.7270.1103.08.0 1.65.0 TYP Cif68
Rft65
20020004.7271.09.32.92.3 1.64.7 TYP
  Uba Ubg2 Ubg1 Rav Rg2 Rg1 Ia Ig2 Ig1 Uosc~ Sc Rate 14495
VVVkOHMMOHMmAmAµA V.RMSmA/V

Hoch - UpRunter - Down 956 9001 9003  
Ub:
Ua:
Ug3:
Ug2:
Ug1:
-
250
-
100
-10
-
100
-
100
-5.0
-
250
-
100
-5.0
-
100
-
100
-10
-
250
-
100
-10
V
V
V
V
V
Rg3:
Rg2:
Rg1:
Rk:
      kOHM
kOHM
kOHM
OHM
Ia:
Ig3:
Ig2:
Ig1:
Sc:
ra:
-
-
-
-
0.6
-
-
-
-
-
-
-
-
-
-
-
0.55
-
-
-
-
-
-
-
-
-
-
-
0.6
-
mA
mA
mA
µA
mA/V
MOHM
Ug3~ (OSC):
Ug1~ (OSC):
Uosc~:
-
-
9.0
-
-
4.0
-
-
4.0
-
-
9.0
-
-
9.0
V.RMS
V.RMS
V.PK
Ref *? Rca60 Rca43 Rca43  

Hoch - UpRunter - Down ECF80 PCF86  
Ub:
Ua:
Ug2:
-
170
170
190
190
-
V
V
V
Rg2:
Rg1:
Rk:
-
0.1
330
-
0.1
820
18
0.1
-
kOHM
MOHM
OHM
Ia:
Ig2:
Ig1:
Sc:
ra:
6.5
2.0
20
2.2
0.8
5.2
1.5
0
2.1
0.87
8.5
3.0
30
4.5
0.6
8.5
2.7
-
4.5
-
mA
mA
µA
mA/V
MOHM
Ug1~ (OSC): 3.5 2.3 V.RMS
Ref *? Sie64 Phi69 Sie64
Tfk74
 

Hoch - UpRunter - Down EF97  
Ub:
Ua:
Ug3:
Ug2:
Ug1:
6.3
6.3
-
3.2
-
6.3
6.3
-
3.2
-2.7
6.3
6.3
-
3.2
-3.9
12.6
12.6
-
6.3
-
12.6
12.6
-
6.3
-3.5
12.6
12.6
-
6.3
-5.2
V
V
V
V
V
Rg3:
Rg2:
Rg1:
Rk:
100
-
10
-
100
-
10
-
kOHM
kOHM
MOHM
OHM
Ia:
Ig3:
Ig2:
Ig1:
Sc:
ra:
0.35
-
0.45
-
250
50
-
-
-
-
25
-
-
-
-
-
12.5
-
1.0
-
1.35
-
500
45
-
-
-
-
50
-
-
-
-
-
25
-
mA
mA
mA
µA
µA/V
kOHM
Ug3~ (OSC):
Ug1~ (OSC):
5.0
-
10
-
V.RMS
V.RMS
Ref *? Tfk61 13873

6.8.3 Hexoden- und Heptodenmischer
Pentagrid Converters

Hoch - UpRunter - Down 1A1P 1A2P 2G21  
Ub:
Ua:
Ug2g4:
Ug3:
Ug1:
-
90
45
0
-
-
60
45
0
-
-
22.5
22.5
0
-
-
22.5
22.5
-3.5
-
V
V
V
V
V
Ia:
Ig2g4:
Ig3:
Ig1:
Ik:
Sc:
ra:
0.64
-
-
80
2.48
0.25
-
0.7
1.1
-
115
-
0.24
-
0.2
0.3
-
30
-
0.06
0.5
-
-
-
-
-
0.002
-
mA
mA
µA
µA
mA
mA/V
MOHM
Rg2g4:
Rg3:
Rg1:
Rk:
-
-
100
-
-
-
51
-
-
5.0
50
-
kOHM
MOHM
kOHM
OHM
req:
Ug1~ (OSC):
-
15
-
8.0
  kOHM
V.RMS
Ref *? Ccc77 Ccc77 Ray56  

Hoch - UpRunter - Down 12AD6 12FX8A 12GA6  
Ub:
Ua:
Ug2g4:
Ug3:
Ug1:
-
12.6
12.6
0
-
-
12.6
12.6
-1.8
-
-
12.6
12.6
-2.2
-
-
12.6
12.6
0.5
-
-
12.6
12.6
-3.0
-
-
12.6
12.6
-8.0
-
-
12.6
12.6
0
-
-
12.6
12.6
-2.5
-
-
12.6
12.6
-3.0
-
V
V
V
V
V
Ia:
Ig2g4:
Ig3:
Ig1:
Ik:
Sc:
ra:
0.45
1.5
-
50
-
0.26
1.0
-
-
-
-
-
0.02
-
-
-
-
-
-
0.005
-
0.29
1.25
-
-
-
0.3
0.5
-
-
-
-
-
0.01
-
-
-
-
-
-
0.001
-
0.3
0.8
-
60
-
0.14
1.0
-
-
-
-
-
0.02
-
-
-
-
-
-
0.005
-
mA
mA
µA
µA
mA
mA/V
MOHM
Rg2g4:
Rg3:
Rg1:
Rk:
-
2.2
33
-
-
2.2
33
-
-
2.2
33
-
kOHM
MOHM
kOHM
OHM
req:
Ug1~ (OSC):
-
1.6
-
1.6
-
1.6
kOHM
V.RMS
Ref *? Get56 173 Get60 Get60 Get59  

Hoch - UpRunter - Down 26D6  
Ua:
Ug2g4:
Ug3:
26.5
26.5
–0.5
26.5
26.5
–6.0
100
100
–1.5
100
100
–30
250
100
–1.5
250
100
–30
V
V
V
Ia:
Ig2g4:
Ig1:
Ik:
Sc:
ra:
0.45
1.6
100
2.15
270
-
-
-
-
-
8.0
-
2.8
8.0
500
11.3
455
0.5
-
-
-
-
4.0
-
3.0
7.8
500
11.3
475
1.0
-
-
-
-
4.0
-
mA
mA
µA
mA
µA/V
MOHM
Rg1: 20 kOHM
Ref *? 292 Rca46 13910

Hoch - UpRunter - Down ACH1 ECH35 E91H  
Ub:
Ua:
Ug2g4:
Ug3:
Ug1:
300
300
70
–15
–2.0
300
300
70
–15
–20
250
250
100
-
–2.0
250
250
-
-
–23.5
250
250
145
-
–31
250
250
100
-
–2.0
250
250
100
-
–17
250
250
100
-
–23
-
250
100
–5.0
-
V
V
V
V
V
Ia:
Ig2g4:
Ig3:
Ig1:
Sc:
ra:
2.5
3.5
-
-
750
0.8
0.01
-
-
-
1.0
10
3.0
3.0
200
-
650
1.3
-
-
200
-
6.5
>3.0
-
-
200
-
1.0
>4.0
3.0
3.0
200
-
650
1.3
-
-
200
-
6.5
>5.0
-
-
200
-
1.0
>6.0
3.3
6.5
-
530
450
0.85
mA
mA
µA
µA
µA/V
MOHM
Rg2g4+:
Rg2g4–:
Rg3:
Rg1:
Rk:
50 142
25
20
-
220
24
33
50
-
215
-
-
50
-
215
  kOHM
kOHM
kOHM
kOHM
OHM
Ca:
Cg:
Ck:
1000
100
-
50
50
0.1
    pF
pF
µF
req:
Ug1~ (OSC):
Ug3~ (OSC):
  -
-
8.0
-
-
8.0
-
10
-
kOHM
V.RMS
V.RMS
Ref *? Ci1 Rat49 Ci1 Mul46 Mul46 Val62  

Hoch - UpRunter - Down UCH41 ECH41 ECH42  
Ub:
Ua:
Ug2g4:
Ug1:
100
100
53
–1.0
100
100
68
–14
170
170
87
–1.8
170
170
116
–22
200
200
105
–2.2
200
200
136
–27
250
250
105
–2.0
250
250
147
–28
250
250
85
–2.0
250
250
124
–29
250
250
85
–2.0
250
250
124
–29
V
V
V
V
Ia:
Ig2g4:
Ig3:
Sc:
ra:
1.0
1.0
200
320
1.4
-
-
200
3.2
>5.0
2.2
1.9
320
450
1.2
-
-
320
4.5
>5.0
3.0
2.1
360
500
1.0
-
-
360
5.0
>5.0
3.0
2.2
350
500
2.0
-
-
350
5.0
>5.0
3.0
3.0
350
750
1.7
-
-
350
7.5
>5.0
3.0
3.0
200
750
1.7
-
-
200
7.5
>5.0
mA
mA
µA
µA/V
MOHM
Rg2g4+:
Rg2g4–:
Rg3:
Rg1:
Rk:
22
47
20
1.0
200
22
47
20
1.0
200
22
47
20
1.0
225
33
47
20
1.0
200
27
27
22
1.0
180
27
27
47
1.0
180
kOHM
kOHM
kOHM
MOHM
OHM
req:
Ug3~ (OSC):
115
4.0
-
4.0
145
7.0
-
7.0
220
8.0
-
8.0
170
8.0
-
8.0
100
8.0
-
8.0
100
8.0
-
8.0
kOHM
V.RMS
Ref *? Phi48 Phi52 Phi52 Phi52 14332

Hoch - UpRunter - Down UCH42  
Ub:
Ua:
Ug2g4:
Ug1:
100
100
43
–1.0
100
100
57
–13.5
100
100
43
–1.0
100
100
57
–13.5
170
170
70
–1.85
170
170
100
–25
170
170
70
–1.85
170
170
100
–25
200
200
85
–2.0
200
200
119
–27.5
200
200
85
–2.0
200
200
119
–27.5
V
V
V
V
Ia:
Ig2g4:
Ig3:
Sc:
ra:
1.2
1.46
175
530
>1.0
-
-
175
5.3
>5.0
1.2
1.46
100
530
>1.0
-
-
100
5.3
>5.0
2.1
2.6
350
670
>1.0
-
-
350
6.7
>5.0
2.1
2.6
200
670
>1.0
-
-
200
6.7
>5.0
3.0
3.0
350
750
>1.0
-
-
350
7.5
>5.0
3.0
3.0
200
750
>1.0
-
-
200
7.5
>5.0
mA
mA
µA
µA/V
MOHM
Rg2g4+:
Rg2g4–:
Rg3:
Rg1:
Rk:
18
27
22
1.0
180
18
27
47
1.0
180
18
27
22
1.0
180
18
27
47
1.0
180
18
27
22
1.0
180
18
27
47
1.0
180
kOHM
kOHM
kOHM
MOHM
OHM
req:
Ug3~ (OSC):
60
4.0
-
4.0
60
4.0
-
4.0
65
8.0
-
8.0
65
8.0
-
8.0
75
8.0
-
8.0
75
8.0
-
8.0
kOHM
V.RMS
Ref *? Phi49 Phi52 14332

Hoch - UpRunter - Down ECH71 ECH81 ECH83 ECH 171 ECH 8000  
Ub:
Ua:
Ug2g4:
Ug3:
Ug1:
250
250
100
-
-2.0
250
250
250
-
-25
250
250
103
-
-2.0
250
250
250
-
-28.5
250
225
78
-
-0.5
250
240
235
-
-28
6.3
6.3
6.3
-
-
12.6
12.6
12.6
-
-
25
25
25
-
-
250
250
80
-10
-2.0
250
250
235
-10
-25
250
250
60
-
-1.5
250
250
-
-
-24
V
V
V
V
V
Ia:
Ig2g4:
Ig3:
Ig1:
Sc:
ra:
3.0
6.2
190
-
750
1.4
-
-
190
-
7.5
3.0
3.25
6.7
200
-
775
1.0
-
-
200
-
7.75
3.0
3.3
7.8
200
-
1100
0.8
-
-
200
-
11
3.0
0.05
0.08
7.0
-
90
1.3
0.17
0.3
18
-
220
1.5
0.55
1.0
40
-
450
0.5
2.0
3.0
-
-
700
1.0
-
-
-
-
15
-
4.0
7.0
200
-
1500
0.7
-
-
200
-
10
2.0
mA
mA
µA
µA
µA/V
MOHM
Rav:
Rg2g4:
Rg3:
Rg1:
Rk:
-
24
50
-
150
-
22
47
-
-
8.2
22
47
1.0
-
-
-
47
1.0
-
-
40
50
-
250
-
27
47
-
-
kOHM
kOHM
kOHM
MOHM
OHM
req:
Ug3~ (OSC):
55
-
-
-
70
-
-
-
30
8.0
-
8.0
-
1.1
-
1.7
-
3.5
    kOHM
V.RMS
Ref *? 129 Ftb50 Sie64 Rtt94 Tfk69 Ci2 Phi69 129 Ftb51 129 Tfk65  

Hoch - UpRunter - Down UCH71 UCH81  
Ub:
Ua:
Ug2g4:
Ug3:
Ug1:
100
100
53
-
-1.0
100
100
100
-
-14
200
200
100
-
-2.0
200
200
200
-
-28
100
100
56
-
-0.5
100
100
-
-
-12
170
170
88
-
-0.5
170
170
-
-
-19
200
200
100
-
-0.5
200
200
-
-
-22
200
200
119
-
-2.6
200
200
200
-
-28
200
200
-
-
-2.6
200
200
-
-
-28
V
V
V
V
V
Ia:
Ig2g4:
Ig3:
Ig1:
Sc:
ra:
1.5
3.0
95
-
580
1.0
-
-
95
-
5.8
10
3.5
6.5
190
-
750
1.0
-
-
190
-
7.5
10
2.0
4.4
115
0.5
850
0.75
-
-
115
-
8.5
3.0
3.3
8.2
200
0.5
1100
0.8
-
-
200
-
11
3.0
4.1
10
230
0.5
1200
0.85
-
-
230
-
12
3.0
3.7
8.1
230
-
775
1.0
-
-
230
-
7.75
3.0
3.7
8.1
230
-
775
1.0
-
-
230
-
7.5
-
mA
mA
µA
mA
µA/V
MOHM
Rav:
Rg2g4:
Rg3:
Rg1:
Rk:
-
15
50
-
150
-
15
50
-
150
0
10
47
1.0
-
0
10
47
1.0
-
0
10
47
1.0
-
-
10
47
-
150
-
10
47
-
150
kOHM
kOHM
kOHM
MOHM
OHM
req:
Ug3~ (OSC):
40
-
55
-
33
-
-
-
30
-
-
-
32
-
-
-
75
-
-
-
75
10
-
10
kOHM
V.RMS
Ref *? 129 Ftb50 Phi69 Sie64 Rtt94 Tfk69  

Hexodenmischer - Hexode Converters
Hoch - UpRunter - Down   DCH11    
Ub Ua Ug2g4 Ug3 Rg2g4 Rg3 Ug1 Ia Ig2g4 Ig1 Ik Sc ra Ref *?
VVVkOHMV mAmAµAmAµA/VMOHM
9050–4.00500 0.751.1--280>1.0 Tfk41
–5.1 ----2.8>10
9050–4.040500 ----280>1.0 128 Tfk41
90–8.0 ----2.8>10
12060–5.00500 1.01.5--300>1.0 Tfk41
–5.7 ----3.0>10
12060–5.040500 ----300>1.0 128 Tfk41
120–10 ----3.0>10
Ub Ua Ug2g4 Ug3 Rg2g4 Rg3 Ug1 Ia Ig2g4 Ig1 Ik Sc ra 18168
VVVkOHMV mAmAµAmAµA/VMOHM

Heptodenmischer - Pentagrid Converters
Hoch - UpRunter - Down   1LA6    
Ub Ua Ug3g5 Ug4 Ug2 Rg4 Rg3g5 Rg1 Ia Ig3g5 Ig2 Ig1 Ik Sc ra Ref *?
VVVVMOHMkOHM mAmAmAµAmAµA/VMOHM
90450901.045...
75
200 0.550.61.2302.42500.75 414
Tse41
–3.0 -----10-
Ub Ua Ug3g5 Ug4 Ug2 Rg4 Rg3g5 Rg1 Ia Ig3g5 Ig2 Ig1 Ik Sc ra 15824
VVVVMOHMkOHM mAmAmAµAmAµA/VMOHM
Hoch - UpRunter - Down   6BA7    
Ua Ug5 Ug2g4 Ug3 Rg1 Ia Ig2g4 Ig1 Ik Sc ra Ref *?
VVVVkOHM mAmAµAmAµA/VMOHM
1000100–1.020 3.610.235014.29000.5 292
Rca48
–20 ----3.5-
2500100–1.020 3.81035014.29501.0
–20 ----3.5-
Ua Ug5 Ug2g4 Ug3 Rg1 Ia Ig2g4 Ig1 Ik Sc ra 15825
VVVVkOHM mAmAµAmAµA/VMOHM

Oktodenmischer - Octode Converters
Hoch - UpRunter - Down   DK40   Schaltung - Circuit No.3 
Ub Ua Ug4 Uosc~ Rg5 Rg2 Rg1g3 Ug5 Ug2 Ia Ig5 Ig2 Sc ra req Ref *?
VVV.RMSkOHM VVmAµAmAµA/VMOHMkOHM
67.508.001535 67.5450.851901.53701.0- 392
393
Phi53
–9.5 67.5----3.7>10-
67.508.00035 67.567.51.02502.64250.967 392
Phi53
–9.5 67.5----4.25>10-
9008.0908.535 67.567.51.02502.64251.067
–12.5 90----4.25>10-
12008.02102035 67.567.51.02502.64251.0-
–16.5 120----4.25>10-
13508.02702635 67.567.51.02502.64251.0-
–18.5 135----4.25>10-
Ub Ua Ug4 Uosc~ Rg5 Rg2 Rg1g3 Ug5 Ug2 Ia Ig5 Ig2 Sc ra req 15015
VVV.RMSkOHM VVmAµAmAµA/VMOHMkOHM
Hoch - UpRunter - Down   DK21   Schaltung - Circuit No.3 
Ub Ua Ug4 Ig1g3 Rg5 Rg2 Rg1g3 Ug5 Ug2 Ia Ig5 Ig2 Sc ra req Ref *?
VVµAkOHM VVmAµAmAµA/VMOHMkOHM
900200012.535 90601.52502.45001.25- Phi53
–6.0 90----5.0>10-
12002001202535 90601.52502.45001.5-
–8.0 120----5.0>10-
Ub Ua Ug4 Uosc~ Rg5 Rg2 Rg1g3 Ug5 Ug2 Ia Ig5 Ig2 Sc ra req 15015
VVµAkOHM VVmAµAmAµA/VMOHMkOHM
Hoch - UpRunter - Down  Selbstschwingende Oktoden-Mischstufe - Self-Excited Octode Frequency Converter
Mixer
Hoch - UpRunter - Down  C1 C2 Cg1 Cg2 Cg4 Cg5 L1 L2 L3 Rg1g3 Ref *?
pFpFpFµFµFµF µHµHµH kOHM
DK40  --500.10.10.1 --- 35 Phi52
  C1 C2 Cg1 Cg2 Cg4 Cg5 L1 L2 L3 Rg1g3 15016
pFpFpFµFµFµF µHµHµH kOHM

previous page next page previous/next

Copyright © 2021Franz Hamberger, Berlin, Germany
RS248 RS381

Telefunken   RS248Telefunken   RS381