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The table below shows the official 1937 Siemens-Hell-Schreiber equipment catalog of the Siemens-Halske company.

 

       1937 Siemens-Hell-Schreiber catalog

(source: ref 4; all equipment was offered in 220 VAC, 220 VDC, 125 VAC, and 110 VDC versions)

 

	T send 18a: keyboard sender
	T sum 3a, b: tone oscillator (incl. tubes)
	T loch 1k: keyboard tape puncher; model T loch 1 was replaced by T loch 12a (mechanically improved; ref.
	T send 17c: punch tape reader - sender (converts ITA2 code to Hellschreiber format)
	E 415 Rö: radio receiver (incl. AC power supply, excl. tubes)
	E376 S II: fixed-frequency receiver for battery operation (incl. tubes; for 60 - 200 kHz)
	T verst 16: audio keying-amplifier (incl. tubes); output power when combined with receiver: < 2 W
	T empf 12b: Hellschreiber with remote control
	Fm 359c: paper tape winder
	T send 18b: combined Siemens-Hell sender/printer

 

 [T send 17]     [T send 18]       [T send 62 "S"]     [Presse-Hell radio receivers]

[keying devices ("Tastverstärker")]   [tone oscillators ("Tonsummer")]

[Paper tape winder ("Streifenzieher")]      [gummed tape moistener ("Streifen-Anfeuchtegerät)]]

Ref. A: "Tafel 1: Baurten und Betriebswerte von Fernschreibapparaten" [Siemens-Halske and Lorenz], table 1 in  in "Siemens-Hell-Geräte", pp. 61-77 in "Telegrafentechnik", Band 6, Teil 6 of "Der Dienst bei der Deutschen Bundespost - Leitfaden für die Ausbildung", Fritz Schiweck (ed.), R. v. Decker's Verlag, G. Schenck, 1960, 970 pp.

The Hell characters could also be sent by a punch-tape driven sender ("Lochstreifensender"). In this case, a speed of 5 characters per second was used. The standard 5-bit punch tape could be generated with a regular teletype terminal (above), or a stand-alone Siemens-Hell-Handlocher (manual tape puncher, see further below).

The T send 17 is a keyboard + character drum unit, without printer. If you have any information or documentation on this model, please contact me!

Siemens-Hell-Lochstreifengeber "T send 17c" for Siemens-Hellschreiber

(source: figure 8 in ref. 2, 1937)

"Lochstreifensender" "T send 17c" - cover removed
(source: figure 4 in ref. 4, 1933)

Siemens-Hell-Lochstreifensender - but not T send 17

(source: Figure 55 in ref. 21)
 

Ref. 2: Siemens-Hell-Lochstreifengeber "T send 17c": BxTxH=44x34x19, 20 kg, 45 W, 3790 RM (1937)

= Siemens-Hell Lochstreifengeber

(punch tape Hell sender)

 T send 17c

Siemens-Hellschreiber: "Lochstreifensender" with a teletype/puncher
(source: figure 12 in ref. 20, 1934)

Of course need way to make punch tapes: "Handlocher"

Siemens-Hellschreiber: "Handlocher" (tape puncher) model "T loch 1k"
(source: figure 11 in ref. 20, 1934;  BxTxH=43x34x41, 15 kg, 50 W)

Handlocher" model "T loch 1k" - without cover
(source: figure 11 in ref. 20, 1934)

	Ref. 2: p.7 in "Siemens-Hell-Schreiber", Fernmeldetechnik, Siemens & Halske A. G., Wernerwerk, Berlin-Siemensstadt, 2. 37. 5. T., SH6592, 1937, 7 pp.
	Ref. 4: "Der Siemens-Hell-Schreiber", H. Stahl, Siemens & Halske A. G., Wernerwerk, Berlin-Siemenstadt, 1934, 15 pp. SH5358, 1.34.1,5 T.; reprint from Telegraphen- und Fernsprechtechnik, Jg. 22, Heft 11, November 1933, pp. 291-295
	Ref. 5: "Siemens-Hell-Lochstreifengeber „S“ - T send 62 a“, [product brochure] Siemens-Halske A.G., Wernerwerk für Fernmeldetechnik, SH 2969, St KB 1213/1, 11531.T.Fs, 1931?, 2 pp.
	Ref. 6: "Stand der Siemens-Hell-Fernschreibtechnik", Rudolf Zimmerman, Siemens & Halske A.G. - Wernerwerk,  Technische Mitteilungen des Fernmeldewerks, Abteilung für Telegrafengerät, SH 7997. 0,5. 1043. TT1.  M/1401, May 1940, 10 pp. (courtesy Siemens Corporate Archives, München)
	Ref. 20: "Die Fortentwicklung des Fernschreibverkehrs über Draht und drahtlos“, P. Storch, Elektrotechnische Zeitschrift (ETZ) [Hellschreiber, Handsender, Lochstreifensender on pp. 141-143], Jg. 55, Heft 5, 1 February 1934, pp. 109-112, 141-143 [also contains results of transmission trials]
	Ref. 21: p. 66 in "Siemens-Hell-Geräte", pp.61-77 in "Telegrafentechnik", Band 6, Teil 6 of "Der Dienst bei der Deutschen Bundespost - Leitfaden für die Ausbildung", Fritz Schiweck (ed.), R. v. Decker's Verlag, G. Schenck, 1960, 970 pp.

Siemens-Hellschreiber: "Handsender"
(source: figure 10 in ref. 20, 1934)

"Handsender" for Siemens-Hellschreiber - cover removed
(source: figure 3 in ref. 4, 1933)

The above "Handsender" (manual sender, as opposed to a punch-tape sender) comprises a keyboard, a character drum, and a vertically installed motor. The character drum is a stack of notched (cam) disks. The drum turns at 150 rpm, equivalent to 2.5 characters per second, just like the Feld-Hellschreiber. Both require a special typing rhythm, as the keys of the keyboard are only enabled briefly, once per revolution of the drum.

	Ref. 4: "Der Siemens-Hell-Schreiber", H. Stahl, Siemens & Halske A. G., Wernerwerk, Berlin-Siemenstadt, 1934, 15 pp. SH5358, 1.34.1,5 T.; reprint from Telegraphen- und Fernsprechtechnik, Jg. 22, Heft 11, November 1933, pp. 291-295
	Ref. 20: "Die Fortentwicklung des Fernschreibverkehrs über Draht und drahtlos“, P. Storch, Elektrotechnische Zeitschrift (ETZ) [Hellschreiber, Handsender, Lochstreifensender on pp. 141-143], Jg. 55, Heft 5, 1 February 1934, pp. 109-112, 141-143 [also contains results of transmission trials]

This is a keyboard + character drum unit, without printer. If you have any information or documentation on this model, please contact me!

Note: T send 18b is a combined Hellschreiber keyboard-sender + printer. See the "Other Siemens-built Hellschreibers" page.

Siemens-Hell-Handgeber "T send 18a", BxTxH=43x39x34.5, 18 kg, 40 W, 2880 Rm (1937)
 

	Ref. 4: p.7 in "Siemens-Hell-Schreiber", Fernmeldetechnik, Siemens & Halske A. G., Wernerwerk, Berlin-Siemensstadt, 2. 37. 5. T., SH6592, 1937, 7 pp.
	Ref. 5: "Der Siemens-Hell-Schreiber", Alexander B. Damjanovic, Zeitschrift für Fernmeldetechnik, Werk- und Gerätebau, Siemens & Halske A.G., Wernerwerk, Jg. 17, Nr. 12, 1936, 7 pp., SH 66554, 1. 37. 0,5 T.

The T send 62a (a.k.a. model "S") is a Hell character sender that is punch-tape driven ("Lochstreifensender"). So it has neither a keyboard, nor a printer. It has buttons for remote control of a compatible printer. It could also send a pause character (like the Feld-Hell). The unit is powered by a DC collector motor, with a centrifugal speed regulator (like the Feld-Hell machine).

 If you have any additional information or documentation on this model, please contact me!

(source: Bild 279, p. 362 in ref. 7)

CHARACTERISTICS:

	Punch tape coding: standard 5-bit CCIT alphabet nr. 2
	Transmit speed: 5 (5.5) characters/sec (selectable)
	Telegraphy speed: 245 (269.5) Baud
	Audio frequency of sent pixel pulses: 900, 1000, 1500 Hz (selectable)
	Output signal level (manually adjustable): -4 Neper - + 1.5 Neper (-34.7 - +13 dB) at 900 Hz -4 Neper - + 1.6 Neper (-34.7 - +13.9 dB) at 1000 Hz -4 Neper - + 1.8 Neper (-34.7 - +15.6 dB) at 1500 Hz
	Output impedance: 600 ohm
	Variation of audio output frequency: < 1 Hz for 10% AC voltage variation
	Power: 220 Vac, 40-60 Hz
	Dissipation: 50 VA
	Fuse: 200 mA (5x20 mm)
	Tubes (valves): 1x EF14 (pentode), 1x EZ11 ("Zweiweggleichrichter", "full wave rectifier"); both "Stahlröhre" ("metal-can tube"; ref. 21, 113) with 8-pin T-type base.
	Dimensions: 44x32x21 cm (≈17x12¾x8¼")
	Weight: 20 kg (≈44 lbs)

         
EF 14 tube

	Ref. 21: "Spezial- und Wehrmachtsröhren, UKW-Röhren (λ = 10 - 1 m)", Gerhard Bogner, Folge 6 of Teil 6 "Zeitraum 1934-1940" of "Entwicklung des UKW-Rundfunks", Funkgeschichte (Gesellschaft der Freunde der Geschichte des Funkwesens (GFGF) e.V.), Nr. 141/2002
	Ref. 113: "Ein Beitrag zur Geschichte der Stahlröhrenentwicklung – Die Abstimmung des Stahlröhrenprogrammes, Teil 2“, Thomas Lebeth, pp. 15-17 in "Radiobote", Jg. 5, Heft 25, Jan-Feb 2009    See note 1 [ref. article-radiobote-lebeth-5-25]

Note 1: I have this document (or the pertinent pages from it) on file, but can not post it here, due to copyright reasons. Contact me if you need a copy.

What are they, why needed. Interfaces.

Siemens-Hell-Verstärker (einschl. Röhren) "T Verst 16", BxTxH=27x24x18, 6.5 kg, 45W, 288 RM (1937)

Small "Sendetastgerät" (transmitter keying device) accessory for Hellschreiber
(source: figure 20 in ref. 6, 1940)

Large "Sendetastgerät" (transmitter keying device) accessory for Hellschreiber
(source: figure 21 in ref. 6, 1940)

St.V.1, SV 36

Keying device ("Tastgerät") for Presse Hellschreiber 

Siemens-Halske model "St.V. 1"

Label on the front of the above "Tastgerät"

(note the "Baujahr" year of manufacture: "B2". This is month 2 of year "B". S-H started a new numbering scheme when it resumed operation after WWII: "A" for 1945, "B" for 1946 etc.)

Siemens-Halske keying device for the Swedish market - used with Hell Feldfernschreiber

(HELLSKR = "Hellskrivare" = "Hellschreiber", TGF-NYCKEL = "Telegraphy key"

, La - Lb/E = "Leitung" = phone line (same "La, b/earth" marking as on Feld-Hell), "S - M" = "Sända - Mottaga" = Send - Receive; (original photo courtesy Willi Reppel)

	Ref. 6: "Stand der Siemens-Hell-Fernschreibtechnik", Rudolf Zimmerman, Siemens & Halske A.G. - Wernerwerk,  Technische Mitteilungen des Fernmeldewerks, Abteilung für Telegrafengerät, SH 7997. 0,5. 1043. TT1.  M/1401, May 1940, 10 pp. (courtesy Siemens Corporate Archives, München)
	Ref. 21: "Vertärker für Bildfunk und Hellschreiber", Fritz Vilbig, Jonathon Adolf Wilhelm Zenneck, pp. 615-616 in "Fortschritte der Hochfrequenztechnik", Band 2, 1945

Lochstreifensender and Handsender only have an on-off keying output. They do not include a tone generator to generate keyed (900 Hz) tones. Need external tone oscillator: "Tonsummer", "Rohrsummer", "Röhrensummer".  Also for use with a non-CW transmitter (AM in that era, not yet SSB, though would be the same).

"Old" model "Röhrensummer" (tone generator) accessory for Hellschreiber-Geber
(source: figure 18 in ref. 6, 1940)

Siemens-Hell-Röhrensummer "T sum 3a,b" BxTxH=27x24x18, 6.5 kg, 35 W, 288 RM (1937)

"New" model "Röhrensummer" (tone generator) accessory for Hellschreiber-Geber
(source: figure 19 in ref. 6, 1940)

Paper tape winder ("Aufwickelvorrichtung", "Streifenzieher")  Fm 359c

Gummed-tape moistener ("Streifen-Anfeuchtegerät)

Ref. 1: p. 76, 77 in "Siemens-Hell-Geräte", pp. 61-77 in "Telegrafentechnik", Band 6, Teil 6 of "Der Dienst bei der Deutschen Bundespost - Leitfaden für die Ausbildung", Fritz Schiweck (ed.), R. v. Decker's Verlag, G. Schenck, 1960, 970 pp.

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